[\/et_pb_text][et_pb_text admin_label=”water care basic” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/water-basic-bg3.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages4 {|| padding: 275px 40px 0px 40px;|| font-family: open sans;|| ||}||.styling-pages4 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;|| padding: 0 0 25px 0;||||}||.styling-pages4 h1{||font-size: 14px;||line-height: .1;||letter-spacing: -.5px;|| font-weight: 900;||}||.styling-pages4 a{||font-weight: bold;||color: #474747;||}||.styling-pages4 h4{||padding-bottom: 0px;|| padding-top: 10px;||}||.styling-pages4 ol li{|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;|| padding-bottom: 10px;|| || ||}||||||||.styling-pages-padding4 {|| padding: 40px 100px 0px 70px;|| line-height: 1.2;|| ||}||||ol, ul {|| margin: 0; \/* Resets default margin *\/|| padding: 0 0 0 2em; \/* Adds left padding for list markers and indentation *\/||}||||li {|| list-style-position: outside; \/* Ensures wrapping text aligns under the start of the first line of text *\/|| \/* Use margin-bottom on li for spacing between items, not line-height *\/|| margin-bottom: 0.5em; ||}||\/* Default background image for English *\/||.et_pb_text_5 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/water-basic-bg3.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_5 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/page4-fr.png%22);||}||” global_colors_info=”{}”]<\/p>\n
\n
The three main components to water balance are:
alkalinity, pH and hardness<\/strong><\/p>\nTesting Water Balance<\/h1>\n
There are 4 common ways to test your water balance.<\/p>\n
\n- TEST STRIPS<\/strong> The most commonly used and fastest method is to use test strips. These strips use litmus paper that is dipped into the water and then matched against a colour legend to determine different readings. Most strips test for the basics: pH, alkalinity and free sanitizer. Some will test for more including total chlorine and hardness. Test strips have a shelf life; ensure that the test strips have not expired.<\/li>\n
- TITRATION<\/strong> This is where drops of a reagent are added to a water sample and the corresponding colours are compared to a chart to determine the readings. The reagents used in titration have an expiry date; ensure that the reagents have not expired.<\/li>\n
- ELECTRONIC TESTING<\/strong>There are several electronic testing devices available.<\/li>\n
- WATER LAB TESTING<\/strong> These tests are typically done at a professional spa retailer who is equipped with high-tech equipment to analyze<\/li>\n<\/ol>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”alkalinity page 5″ _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/alkalinity2x-1.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages5 {|| padding: 48px 38px 0px 38px;|| font-family: open sans;|| ||}||.styling-pages5a {|| padding: 10px 100px 0px 40px;|| font-family: open sans;||}||.styling-pages5b {|| padding: 10px 38px 0px 38px;|| font-family: open sans;||}||.styling-pages5c {|| padding: 10px 38px 0px 38px;|| font-family: open sans;||}||.styling-pages5 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||.styling-pages5a p {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||.styling-pages5b p {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||.styling-pages5c p {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||.styling-pages5 h1{||font-size: 15px;||line-height: .9;||letter-spacing: -1px;|| font-weight: 900;||}||.styling-pages5 a{||font-weight: bold;||color: #474747;||}||.styling-pages5 h4{||padding-bottom: 0px;|| padding-top: 10px;||}||.styling-pages5 ul li{|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages-padding5 {|| padding: 40px 100px 0px 70px;|| line-height: 1.2;|| ||}||\/* Default background image for English *\/||.et_pb_text_6 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/alkalinity2x-1.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_6 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/page5-fr.png%22);||}||||” global_colors_info=”{}”]<\/p>\n
\n
Alkalinity & pH<\/h1>\n
Alkalinity is what keeps your water\u2019s pH in proper range. pH is the measurement of how acidic or basic your water is. pH that is too high or too low can be problematic.<\/p>\n<\/div>\n
\n
If pH was a boat, alkalinity would be the anchor. If the anchor is not set, the boat will drift away. If your alkalinity is not in proper ranges (set), then your pH will drift out of range.
Alkalinity is fine between 80-150 ppm, and ideally ought to be between 120-150.<\/p>\n<\/div>\n
\n
If your alkalinity is greater than 150, it will allow the pH to become high enough that it can create cloudy water, and can cause calcium and gypsum that may be naturally occurring and dissolved in your water, to precipitate out of solution and stick to the spa walls leaving them feeling gritty or to have a film that looks like drywall compound on them. pH that is too high may also cause bather discomfort.<\/p>\n<\/div>\n
\n
If alkalinity is too low, it can cause pH to become too low, making the water acidic, which can cause foaming, damage to your spa\u2019s equipment, and bather discomfort; bathers will start to itch and may even break out in rashes.<\/p>\n
If pH is either too high or too low, sanitizers such as chlorine and bromine do not work as efficiently. In some cases, they may only be 10% efficient which means you have to add 10 times as much chlorine\/ bromine when the pH is not balanced, as you would if it were balanced.<\/p>\n
Always set the alkalinity before you adjust pH. To lower alkalinity, use pH reducer. One tablespoon (15 grams) of pH reducer will lower alkalinity about 10 ppm in 250 gallons (1,000 litres) of water. Once you have added pH reducer, wait at least 2 hours before testing the alkalinity again.<\/p>\n
To raise alkalinity, use alkalinity increaser. One tablespoon (15 grams) of alkalinity increaser will raise alkalinity about 10 ppm in 250 gallons (1,000 litres) of water. There is no wait time for checking the alkalinity reading after the alkalinity increaser has been added to the water.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”alkalinity page 2 (6)” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/alkalinity-page2-bg.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages6 {|| padding: 98px 30px 0px 38px;|| font-family: open sans;|| ||}||.styling-pages6a {|| padding: 20px 40px 0px 38px;|| font-family: open sans;|| ||}||\/* Specific width for English *\/||body.translatepress-en_CA .styling-pages6a2 {|| padding: 20px 30px 0px 38px;|| font-family: open sans;||}||||.styling-pages6a2 {|| padding: 10px 30px 0px 38px;|| font-family: open sans;|| ||}||.styling-pages6 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||.styling-pages6a p {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||.styling-pages6a2 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||.styling-pages6 h1{||font-size: 40px;||line-height: .9;||letter-spacing: -1px;|| font-weight: 900;||}||.styling-pages6 a{||font-weight: bold;||color: #474747;||}||.styling-pages6 h4{||padding-bottom: 0px;|| padding-top: 10px;||}||.styling-pages6 ul li{|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages-padding6 {|| padding: 10px 100px 0px 38px;|| line-height: 1.2;|| ||}||.styling-pages-padding6 {|| font-size: 12px;|| color:#474747;|| line-height: 1.2;|| text-align: justify;||}||\/* Default background image for English *\/||.et_pb_text_7 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/alkalinity-page2-bg.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_7 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/page6-fr.png%22);||}||” global_colors_info=”{}”]<\/p>\n
\n
Once the alkalinity is in range, then check the pH, and adjust it, if necessary, using pH increaser or pH reducer, as per the directions on the package.<\/p>\n<\/div>\n
\n
In traditional spa water care, pH is recommended to be between 7.2-7.8, but with Spa Marvel<\/strong> the pH range is broader; pH is fine between 7.2-8.4, as long as you are using Spa Marvel and the alkalinity is within the correct range (80-150).<\/p>\n<\/div>\n\n
The reason for this broader acceptable pH range is that Spa Marvel<\/strong> reduces the surface tension of the water. When surface tension is reduced, hydrogen molecules behave differently causing pH to naturally rise a little bit. pH that is high due to this natural rise will not cause cloudy water, reduced sanitizer efficiency, scaling, odours, or other issues as it can in traditional (non-Spa Marvel) water care. If you try to lower pH to the ranges that are recommended in traditional spa water care, it will cause the alkalinity to drop, and while the pH may drop for a period of time, it will tend to creep back up. So as long as your alkalinity is between 80-150 (where 120-150 is ideal), if the pH is a little higher than what you are used to, leave it alone.<\/p>\nTo lower pH, use pH reducer. To raise pH, use pH increaser. When using Spa Marvel<\/strong>, it is very rare that you will need to adjust pH, as long as the alkalinity is in the proper range. Again, do not worry about the pH readings until alkalinity is in the proper range<\/strong>.<\/p>\nAs you add sanitizers such as chlorine and bromine to your spa water, they turn to acid, and the acid will slowly lower the alkalinity which will eventually cause the pH to go out of range again. Check your alkalinity reading regularly, and raise it back to proper ranges if and as required.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”Calcium” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/calciumBG-2.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages-padding7 {|| padding: 40px 100px 0px 40px;|| line-height: 1.2;|| ||}||\/* Specific width for French *\/||body.translatepress-fr_CA .styling-pages-padding7 {|| padding: 52px 100px 0px 40px;|| line-height: 1.2;||}||.styling-pages-padding7 h1{||font-size: 20px;||line-height: .9;||letter-spacing: -1px;|| font-weight: 900;||}||.styling-pages-padding7 {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;|| ||}||.styling-pages7 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||||.styling-pages7 {|| padding: 10px 40px 0px 40px;|| font-family: open sans;|| ||}||.styling-pages7 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages7 h1{||font-size: 20px;||line-height: .9;||letter-spacing: -1px;|| font-weight: 900;||}||||||\/* Default background image for English *\/||.et_pb_text_8 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/calciumBG-2.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_8 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/page7-fr.png%22);||}||” global_colors_info=”{}”]<\/p>\n
\n
Calcium Hardness<\/h1>\n
Calcium hardness is a measurement of how much calcium is dissolved in your water.<\/p>\n<\/div>\n
\n
If there isn\u2019t enough calcium in your water (the water is soft), it can make it more difficult to maintain your alkalinity and pH readings, you can experience excessive foaming, and the water may feel sticky on your skin.<\/p>\n
If calcium hardness is too high (the water is hard), it can create scaling in your hot tub, similar to the white scale build-up you see in shower heads and tea kettles. The good news is that Spa Marvel does a great job at preventing scale build up from forming, so you do not need to worry about hard water when using Spa Marvel<\/strong>. Additionally, if you fill your spa using the X10 Filter<\/strong>, the X10 will alter calcium in the water to a form that doesn\u2019t cause scaling.<\/p>\nCalcium hardness should be between 150-250 ppm. To increase calcium hardness, use calcium hardness increaser. There is no easy way to lower calcium hardness in spa water. If you are not using Spa Marvel as part of your water care regimen, consider using a stain and scale control product from your professional spa retailer to help to combat the effects of high calcium hardness.<\/p>\n
If you can, fill your spa with soft water from a water softener, then increase the calcium hardness to the 150-250 ppm range with calcium hardness increaser.<\/p>\n
One tablespoon (15 grams) of calcium hardness increaser will raise hardness about 10 ppm in 250 gallons (1,000 litres) of water.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”sanitation” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/sanitationA.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages8 {|| padding: 120px 40px 0px 40px;|| font-family: open sans;|| ||}||.styling-pages8 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages8 h1{||font-size: 40px;||line-height: .9;||letter-spacing: -1px;|| font-weight: 900;||}||\/* Default background image for English *\/||.et_pb_text_9 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/sanitationA.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_9 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/sanitation-fr.png%22);||}||” global_colors_info=”{}”]<\/p>\n
\n
To maintain a biologically safe environment for bathers, hot tub water requires mechanisms to kill and prevent the growth of bacteria and other pathogens. The products used to do this are known as sanitizers. The most common sanitizers are chlorine and bromine.<\/p>\n
Spa Marvel<\/strong> does some of the work that chlorine and bromine can do, but Spa Marvel<\/strong> does not sanitize; it doesn\u2019t attack and kill bacteria the way a sanitizer does. Rather it naturally removes the food necessary for bacteria to live. This is, in part, how aquariums and lakes can maintain themselves without needing a sanitizer added to them.<\/p>\nSince Spa Marvel<\/strong> is doing some of the work that chlorine and bromine would otherwise do, it will take less chlorine or bromine to maintain the desired readings when using Spa Marvel<\/strong>, than when not.<\/p>\nIt is generally recommended to maintain sanitizer readings between 3-5 ppm in residential spa ap-plications. There are so many variables in spa water care that it is impossible to prescribe an exact amount of sanitizer to use, but when using Spa Marvel<\/strong>, a good rule of thumb (your actual needs may vary) for adding chlorine or bromine granules is to use the ratio of 4 teaspoons per 250 gallons of water (20 grams per 1,000 litres) on the initial fill, and then add 1 teaspoon (5 grams) to the water each time you are finished using the hot tub. If you are using chlorine or bromine in a tablet form, using 2 tablets a week in the dispenser is a good place to start. Your professional spa retailer can provide you with the best product and form of sanitizer to use. Please maintain sanitizer readings as per local regulatory agencies\u2019 guidelines.<\/p>\nNOTE:<\/strong>
When adding chemicals to your spa water, follow the directions on the package.<\/p>\n<\/div>\n[\/et_pb_text][et_pb_text admin_label=”absent spa owner” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/absentee-spa-owner-bg.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages9 {|| padding: 38px 38px 0px 78px;|| font-family: open sans;|| ||}||\/* Specific width for French *\/||body.translatepress-fr_CA .styling-pages9 {|| padding: 26px 26px 0px 78px;|| font-family: open sans;||}||.styling-pages9 p {|| font-size: 12px;|| color:#474747;|| line-height: 1;|| text-align: justify;||}||.styling-pages9 h4{||font-size: 13px;||line-height: .9;||letter-spacing: 0px;|| font-weight: 800;|| padding-top:9px;||}||||.styling-pages-padding9 {|| padding: 40px 100px 0px 70px;|| line-height: 1.2;|| ||}||.styling-pages-padding9 h1{||font-size: 40px;||line-height: .9;||letter-spacing: -1px;|| font-weight: 900;|| ||}||.styling-pages9 ul li {|| font-size: 12px;|| color:#474747;|| line-height: .9;|| text-align: left;|| ||}||.styling-pages9 ul {|| padding-bottom:2px;|| ||}||ol, ul {|| margin: 0; \/* Resets default margin *\/|| padding: 0 0 0 2em; \/* Adds left padding for list markers and indentation *\/||}||||li {|| list-style-position: outside; \/* Ensures wrapping text aligns under the start of the first line of text *\/|| \/* Use margin-bottom on li for spacing between items, not line-height *\/|| margin-bottom: 0.5em; ||}||” global_colors_info=”{}”]<\/p>\n
\n
Absentee Spa Owners<\/h4>\n
Spa Marvel<\/strong> is a favorite amongst absentee spa owners: people like cottagers and vacation home owners whose spas are not being used and who may not be available to add sanitizer for weeks or months on end. Spa Marvel<\/strong> will maintain the water during their absence, even though no sanitizer has been added.<\/p>\nIf you are using Spa Marvel as part of your water care program and are planning an extended absence, we recommend:<\/p>\n
\n- Installing a properly-cleaned filter.<\/li>\n
- Ensuring that alkalinity is 120-150 ppm.<\/li>\n
- Adding chlorine or bromine at the ratio of 4 teaspoons per 250 gallons of water (20 grams per 1,000 litres) or a single tablet of bromine\/chlorine to your dispenser.<\/li>\n
- Leave the lid open for at least 30 minutes.<\/li>\n
- Close the lid.<\/li>\n
- Enjoy your time away.<\/li>\n<\/ul>\n
When you return, your water ought to be pristine; add sanitizer if and as required, and carry on.<\/p>\n
Effects of Sanitizer on Alkalinity<\/h4>\n
As sanitizers such as chlorine and bromine are added to the water, they turn to acid. The acid will lower your alkalinity, which will cause the pH to drop, making the water acidic. It is important to check your alkalinity reading on a regular basis to ensure that it is in the ideal range, and to adjust it as required. If you don\u2019t, as time goes on the water will become more acidic and cause increased sanitizer consumption, foamy water, damage to the spa\u2019s equipment, and bather discomfort including itching and rashes.
\n <\/p>\n
Free, Combined and Total Chlorine<\/h4>\n
When you add chlorine to the water, it is called free, or available, chlorine, because it is free and available to break down contaminants.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”absent spa owner 2″ _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/shock-water-2.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages10 {|| padding: 50px 32px 0px 75px;|| font-family: open sans;|| ||}||\/* Specific width for French *\/||body.translatepress-fr_CA .styling-pages10 {|| padding: 35px 25px 0px 75px;|| font-family: open sans;||}||.styling-pages10 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages10 h4{||font-size: 12px;||line-height: .9;||letter-spacing: 0px;|| font-weight: 800;||}||” global_colors_info=”{}”]<\/p>\n
\n
Once it has combined with a contaminant and has done its work, it converts to a form called combined chlorine, because it has combined with something and broken it down (combined chlorine is often referred to as a chloramine). If you add free chlorine and combined chlorine together, the sum is known as total chlorine.<\/p>\n
Combined chlorine doesn\u2019t sanitize your water, it just sits around and gives off that \u2018chlorine smell\u2019 that people complain of and can cause itchy skin, rashes and burning eyes. A properly balanced spa should not have any combined chlorine nor any chlorine odours. As another example, when you walk into a public pool and smell the \u201cchlorine smell\u201d and think \u201cwow, they have a lot of chlorine in the water\u201d, the opposite is true, it\u2019s combined chlorine (chloramines) that you smell, not fresh, free chlorine.<\/p>\n
Bromine behaves in the same way, and converts to combined bromine.<\/p>\n
To rid your spa of combined chlorine\/combined bromine, you need to shock your water.<\/p>\n
Shocking the Water<\/h4>\n
\u201cShocking\u201d is the term used to describe the addition of a large amount of an oxidizing agent to your spa water. The oxidizing agents will break down the combined chlorine (or combined bromine) which will clear any chlorine odours permeating from your water. The oxidizing agent also breaks down contaminants that cause other odours and that are too small to be filtered out of the spa water, which can cause hazy water.<\/p>\n
Oxidizing agents include non-chlorine shock, bromine and chlorine (in other words, if you smell chlorine, adding more chlorine will take the smell away).<\/p>\n
When combined chlorine is oxidized (broken down) by the shock, it is converted to a gas that needs to be expelled into the atmosphere, and as such you ought to leave the spa\u2019s lid open for 30-60 minutes after shocking.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”clarifier” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/clarifier2.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages11 {|| padding: 66px 30px 0px 84px;|| font-family: open sans;|| ||}||.styling-pages11 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages11 h4{||font-size: 12px;||line-height: .9;||letter-spacing: 0px;|| font-weight: 800;|| padding-bottom: 3px;|| padding-top:8px;||}||” global_colors_info=”{}”]<\/p>\n
\n
You should shock your water when there is an accumulation of combined chlorine, which can be detected by a chlorine odour, and can also be determined with some test kits and test strips. If your test strips have parameters for both free and total chlorine, combined chlorine is calculated by subtracting free chlorine from total chlorine. Ideally you want your free chlorine to equal total chlorine, which would mean that you have zero combined chlorine.<\/p>\n
Most spa users don\u2019t test for combined chlorine, and we understand that it can be confusing. You won\u2019t go wrong simply shocking your water once a week by adding chlorine or bromine granules to the water at the ratio of 4 teaspoons per 250 gallons of water (20 grams per 1,000 litres), or if the water is in any way not crystal-clear, increase the dosage to 2 tablespoons per 250 gallons of water (30 grams per 1,000 litres). If you are using a non-chlorine shock, follow the directions on the package.<\/p>\n
It is acceptable to shock the water more frequently if necessary. For example, if the spa has had a large bather load and the water isn\u2019t crystal clear, shock the water to help to get everything cleared more quickly.<\/p>\n
Clarifier<\/h4>\n
Sometimes contaminants can be introduced to the water that are so fine that they pass through the filter and stay in suspension, leaving the water looking hazy. If a clean filter and shocking the water will not remove these contaminants, then using a water clarifying product from your professional spa retailer will help. The clarifier sequesters the fine particles that are causing the haze and clumps them together so that they become a larger particle and can get trapped in the filter media.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”filter care” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/filter-care.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages12 {|| padding: 90px 30px 0px 30px;|| font-family: open sans;|| ||}||.styling-pages12 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages12 h4{||font-size: 12px;||line-height: .9;||letter-spacing: 0px;|| font-weight: 800;|| padding-bottom: 3px;|| padding-top:8px;||}||.styling-pages12a {|| padding: 248px 30px 0px 30px;|| font-family: open sans;|| ||}||.styling-pages12a p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages12a h4{||font-size: 12px;||line-height: .9;||letter-spacing: 0px;|| font-weight: 800;||}||strong.custom-weight {|| font-weight: 800; \/* Makes the text even thicker if the font supports it *\/||}||\/* Default background image for English *\/||.et_pb_text_13 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/filter-care.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_13 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/filtercare-fr2.png%22);||}||||” global_colors_info=”{}”]<\/p>\n
\n
Clean filter cartridges are essential to successful spa water care. Your filters capture debris introduced by bathers such as hairspray, makeup, deodorant, perfume, lotions and creams, along with human waste including body oils, sweat, and residual urine, feces, mucous and blood.<\/p>\n<\/div>\n
\n
How often should you clean your filters?<\/strong><\/p>\nThere isn\u2019t one perfect schedule \u2014 cleaning frequency is mostly a function of how much debris is introduced to the water.<\/p>\n
For example:<\/p>\n
Light use:<\/strong> A vacation home spa used once a month by two people who shower first may go months before needing a deep clean.<\/p>\nHeavy use:<\/strong> A family of five using the spa daily without showering may need cleaning as often as weekly.<\/p>\nFilter design matters too. Two filters may look the same size, but one may have double the fabric surface area (square footage), meaning it can often go longer between cleanings.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”filters aren’t magic” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/filters1.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”.styling-pages13 {|| padding: 270px 30px 0px 30px;|| font-family: open sans;|| ||}||.styling-pages13 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||.styling-pages13 h4{||font-size: 12px;||line-height: .9;||letter-spacing: 0px;|| font-weight: 800;||}||||||strong.custom-weight {|| font-weight: 800; \/* Makes the text even thicker if the font supports it *\/||}||.indent-items li {|| margin-left: 10px; || }||||||.styling-pages13 ol li{|| font-size: 12px;|| color:#000000;|| line-height: .9;|| text-align: justify;|| padding-bottom: 5px;|| padding-left: 10px;|| ||}||.styling-pages13 ul li{|| font-size: 12px;|| color:#000000;|| line-height: .9;|| text-align: justify;|| padding-bottom: 0px;|| padding-left: 40px;|| ||}||.styling-pages13a {|| padding: 20px 30px 0px 30px;|| font-family: open sans;|| ||}||.styling-pages13a p {|| font-size: 12px;|| color:#474747;|| line-height: .9;|| text-align: justify;|| padding-top: 0px;|| margin-top:0px;|| padding-left:30px;||}||.styling-pages13a ol li{|| font-size: 12px;|| color:#000000;|| line-height: .9;|| text-align: justify;|| padding-bottom: 5px;|| padding-left: 10px;|| margin-left: 20px;||}||.styling-pages13a ul li{|| font-size: 12px;|| color:#000000;|| line-height: .9;|| text-align: justify;|| margin-bottom: 0px;|| padding-left: 0px;|| margin-left: 20px;|| ||}” global_colors_info=”{}”]<\/p>\n
\n
A Key Thing To Remember<\/strong>
Filters aren\u2019t magic \u2014 even a brand-new filter can get overwhelmed quickly.<\/p>\nIf a bather covered in sunscreen uses the spa on day one, that residue can clog the tiny openings in the filter fabric. The filter may still look clean, but it won\u2019t perform, and your water can turn cloudy.<\/p>\n
In that case, adding more shock or clarifier won\u2019t solve the root issue \u2014 a dirty filter will keep water cloudy.<\/p>\n
The Right Way To Clean A Filter<\/strong>
If your current method is simply rinsing with water, that\u2019s a bit like washing your hair without shampoo \u2014 it may look okay briefly, but it isn\u2019t truly clean.<\/p>\nA better approach:<\/strong><\/p>\n<\/div>\n\n
\n- Soak the filter in a proper cartridge cleaner (such as Spa Marvel Filter Cleaner).<\/li>\n
- Rinse thoroughly using a strong stream of water to flush debris out of the pleats.<\/li>\n<\/ol>\n
If after rinsing:<\/p>\n
\n- The pleats are still discoloured, or<\/li>\n
- The filter still smells dirty,<\/li>\n<\/ul>\n
\u2026 it needs a better clean (or may be nearing replacement).<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”Pressure washers can cause damage” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/filter-page2.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 800; \/* Makes the text even thicker if the font supports it *\/||}||\/* Specific width for French *\/||body.translatepress-fr_CA .styling-pages14 {|| padding: 50px 35px 0px 35px;|| font-family: open sans;||}||||.styling-pages14 {|| padding: 68px 38px 0px 38px;|| font-family: open sans;|| ||}||.styling-pages14 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;|| word-spacing: -1.2px;||}||\/* Default background image for English *\/||.et_pb_text_15 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/filter-page2.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_15 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/pg14-properClean-fr.png%22);||}||” global_colors_info=”{}”]<\/p>\n
\n
Some people carefully use a pressure washer to speed up rinsing, but use common sense \u2014 pressure washers can damage filter fabric. A coin-operated car wash sprayer is a good alternative.<\/p>\n
<\/p>\n
A Simple Routine That Works For Most Owners<\/strong><\/p>\nWeekly:<\/strong> Quick rinse with fresh water.<\/p>\nMonthly:<\/strong> Proper deep clean (soak + strong rinse)<\/p>\nAfter heavy use:<\/strong> Rinse again<\/p>\nYour filter can never be too clean \u2014 and it\u2019s much easier to keep a filter clean than to restore a neglected one.<\/p>\n
When To Replace Filters<\/strong><\/p>\nFilters don\u2019t last forever. Even if they look fine, they wear out and can allow more debris to pass through over time.<\/p>\n
A good rule of thumb:<\/p>\n
Replace after 1 year of use or about a dozen deep cleanings, whichever comes first.<\/strong><\/p>\nLastly, not all filters are created equally. A high-quality filter recommended by your professional spa retailer will typically perform better and help maintain clearer water longer.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”Changing the water” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/changing-water.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 700; \/* Makes the text even thicker if the font supports it *\/||}||||.styling-pages15 {|| padding: 62px 33px 0px 33px;|| font-family: open sans;|| ||}||.styling-pages15 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;|| ||}||||.styling-pages15 h1 {||font-size: 40px;||line-height: .9;||letter-spacing: -1px;|| font-weight: 900;|| padding-bottom: 35px;||}||” global_colors_info=”{}”]<\/p>\n
\n
CHANGING THE WATER<\/h1>\n
As chemicals are added to spa water, the water becomes more saturated. It is a good practice to replace your spa water every three months. When using Spa Marvel<\/strong>, you are using fewer chemicals than in traditional spa water care, so if a situation arose where the spa water could not be changed at the three month point (maybe the weather is too cold to permit a water change), simply add another bottle of Spa Marvel<\/strong> to the existing water and carry on for another 3 months.<\/p>\nIn a swim spa, use one bottle of Spa Marvel<\/strong> per month, and change the water as frequently as your professional spa retailer recommends.<\/p>\nA plumbing cleaner such as Spa Marvel Cleanser<\/strong> should be used prior to each water change.<\/p>\n <\/p>\n
NOTE:<\/strong>
\nFollow local discharge bylaws when draining.<\/p>\n<\/div>\n[\/et_pb_text][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” background_enable_image=”off” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
![\"\"](\"https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/11\/HB-page18.png\")
<\/p>\n
[\/et_pb_text][et_pb_text admin_label=”read manual” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/read-manual.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 700; \/* Makes the text even thicker if the font supports it *\/||}||\/* Default background image for English *\/||.et_pb_text_18 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/read-manual.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_18 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/readManual-fr.png%22);||}||.styling-pages16 {|| padding: 400px 65px 0px 65px;|| font-family: open sans;|| ||}||.styling-pages16 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||||.styling-pages16 h1{||font-size: 12px;||line-height: .9;||letter-spacing: .9px;|| font-weight: 900;|| color:#51c7d6;|| padding-bottom:2px;||}” global_colors_info=”{}”]<\/p>\n
\n
ALWAYS SHOWER BEFORE USING<\/h1>\n
Four people in a hot tub is equivalent to 200 people in a swimming pool. The bather load in a spa is tremendous. If you don\u2019t shower thoroughly before using the spa, you are using it as a bath tub. Hairspray, makeup, deodorant, perfume, cologne, gel, detergents\/soap, lotions, and creams are introduced to the water. Those are on top of the sweat, body oil and residual human waste (fecal matter, urine and blood) that often accompanies bathers into the water. This is hard on the water, your water treatment chemicals and your filter. By showering THOROUGHLY before using your spa, your water quality will improve, you will spend less time caring for your filters,<\/strong> and your life will be much better.<\/p>\n<\/div>\n[\/et_pb_text][et_pb_text admin_label=”products” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/products.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 700; \/* Makes the text even thicker if the font supports it *\/||}||||.styling-pages17 {|| padding: 440px 65px 0px 65px;|| font-family: open sans;|| ||}||.styling-pages17 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||||.styling-pages17 h1{||font-size: 12px;||line-height: .9;||letter-spacing: 1px;|| font-weight: 900;||color:#51c7d6;||padding-bottom:2px;||}||” global_colors_info=”{}”]<\/p>\n
\n
USE PROPER PRODUCTS<\/h1>\n
Do not use vinegar and bleach to maintain water balance, those products are for French fries and laundry, not hot tubs. Use products designed for hot tub care; you will find a high-er-quality product when buying from a professional spa retailer than you will when buying from a big-box store. Lower quality products may cause excessive foaming and lead to more frequent water changes.<\/strong> Do not use essential oils, tea-tree oil and other products not designed for hot tub use as they often gum up the filters and cause cloudy water and foam.<\/p>\n<\/div>\n[\/et_pb_text][et_pb_text admin_label=”consider a refill” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/consider-refill.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 700; \/* Makes the text even thicker if the font supports it *\/||}||||.styling-pages18 {|| padding: 230px 70px 0px 70px;|| font-family: open sans;|| ||}||.styling-pages18 p {|| font-size: 12px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||||.styling-pages18 h1{||font-size: 14px;||line-height: .9;||letter-spacing: 1px;|| font-weight: 900;||color:#51c7d6;||padding-bottom:2px;||}||” global_colors_info=”{}”]<\/p>\n
\n
CONSIDER A REFILL
INSTEAD OF CHEMICALS<\/h1>\n
Water is inexpensive. The cost of municipally supplied water in North America is about 1.5 cents per gallon, including the wastewater charge. That translates to a cost of just $6 to fill a 400-gallon spa. So if you have a huge party in your spa and the water is a mess afterwards, consider just dumping and refilling the tub, the cost of replacing the water is a lot less than trying to add chemicals to save the water.<\/strong><\/p>\n<\/div>\n[\/et_pb_text][et_pb_text admin_label=”ensure water” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/ensure-bg.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 700; \/* Makes the text even thicker if the font supports it *\/||}||||.styling-pages19 {|| padding: 200px 55px 0px 95px;|| font-family: open sans;|| ||}||\/* Specific width for French *\/||body.translatepress-fr_CA .styling-pages19 {|| padding: 200px 55px 0px 55px;|| font-family: open sans;||}||||.styling-pages19 p {|| font-size: 13px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||||.styling-pages19 h1{||font-size: 13px;||line-height: .9;||letter-spacing: 1px;|| font-weight: 900;||color:#51c7d6;||padding-bottom:10px;||}||” global_colors_info=”{}”]<\/p>\n
\n
ENSURE YOUR SPA HAS SUFFICIENT FILTRATION<\/h1>\n
Most spas come from the factory pre-programmed to filter water for 4 hours a day, and some with as little as 1 hour a day. This is not sufficient. If you program your spa to filter 6, or even 8 hours a day, you will use fewer chemicals and have much better water quality. If your spa is equipped with a low-volume hush pump (sometimes called a circ pump), it is designed to filter 24\/7, and if it does not come programmed this way, program it to do so as per the instructions in your owner\u2019s manual.<\/p>\n
One might think that it would cost a lot more for electricity to increase the filtration times, but consider this:<\/p>\n
The average electricity cost in North America is 12 cents per kilowatt hour. That means that if a 1-horsepower pump runs for 1 hour, it uses 12 cents of electricity. If you filter water 6 hours a day, versus 4 hours a day, you are spending an extra 24 cents a day on electricity, or $7.30 a month. But in reality you are spending less, because much of the waste heat created by the pump motor is transferred to the water, which will heat the water,<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”ensure-second page” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/ensure-secondpg.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 700; \/* Makes the text even thicker if the font supports it *\/||}||||.styling-pages20 {|| padding: 140px 70px 0px 70px;|| font-family: open sans;|| ||}||.styling-pages20 {|| padding: 140px 60px 0px 60px;|| font-family: open sans;||}||.styling-pages20 p {|| font-size: 13px;|| color:#474747;|| line-height: 1.1;|| text-align: justify;||}||” global_colors_info=”{}”]<\/p>\n
\n
which means your spa\u2019s large electric heating element doesn\u2019t turn on as often as it otherwise would, and as a result uses less electricity, which will save money. The savings from decreased demand on the heater don\u2019t fully offset the increased cost of running the pumps for longer times, but they come close.<\/p>\n
If you are using a circ pump\/hush pump, they are typically a 1\/5 horse-power motor, which means that they use 1 kilowatt of energy every five hours. To run one of these pumps 24\/7, based on the aforementioned numbers, you\u2019re spending 58 cents a day on electricity, less than $18 a month, less what\u2019s offset due to the heater turning on less frequently.<\/p>\n
Increasing your filtration is not expensive and will improve your water quality while decreasing chemical demand.<\/strong><\/p>\nThe cost to heat a freshly-filled spa is negligible. A typical spa holds 400 gallons of water and has a 5 kW heat-er. At 12 cents a kWh, it costs 60 cents an hour to operate the heater. The heater usually raises the temperature at the rate of 7 degrees an hour. Filling the spa with 55 degree water, and raising it to 104 degrees will take 7 hours to heat. Seven hours at 60 cents an hour is $4.20 to heat the spa.<\/p>\n<\/div>\n
[\/et_pb_text][et_pb_text admin_label=”ask us last page” _builder_version=”4.27.5″ _module_preset=”default” background_image=”https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/ask-us.png” width=”356px” max_width=”356px” height=”782.42px” max_height=”782.42px” custom_css_free_form=”strong.custom-weight {|| font-weight: 800; \/* Makes the text even thicker if the font supports it *\/||}||||.styling-pages21 {|| padding: 50px 30px 0px 30px;|| font-family: open sans;|| ||}||.styling-pages21 p {|| font-size: 12px;|| color:#ffffff;|| line-height: 1.1;|| text-align: justify;||}||||.styling-pages21 h1{||font-size: 30px;||line-height: .9;||letter-spacing: 1px;|| font-weight: 900;||color:#ffffff;||padding-bottom:10px;||}||\/* Default background image for English *\/||.et_pb_text_23 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/ask-us.png%22);||}||||\/* Translated background image for French *\/||body.translatepress-fr_CA .et_pb_text_23 {|| background-image: url(%22https:\/\/spamarvel.com\/wp-content\/uploads\/2026\/01\/lastPage-fr.png%22);||}||” global_colors_info=”{}”]<\/p>\n
\n
ASK FOR HELP<\/h1>\n
This is a basic guide to water care.<\/strong> If you\u2019re unsure of anything, or if you encounter something out of the ordinary, consult your professional spa retailer for more advice. You can also check out the resources available at SpaMarvel.com\/Water-Wizard.<\/p>\n<\/div>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text disabled_on=”on|on|off” _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Downloads<\/strong> \u2013 click on the image to download the handbook<\/p>\n[\/et_pb_text][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2022\/03\/handbook-sm.webp” alt=”The Hot Tub Handbook” title_text=”handbook-sm” url=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/HotTubHandbook-InstructionBooklet-webversion.pdf” url_new_window=”on” src_tablet=”https:\/\/spamarvel.com\/wp-content\/uploads\/2022\/03\/handbook-sm.webp” src_phone=”https:\/\/spamarvel.com\/wp-content\/uploads\/2022\/03\/handbook-sm.webp” src_last_edited=”on|phone” disabled_on=”on|on|off” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ disabled_on=”on|on|on” _builder_version=”4.27.5″ _module_preset=”default” custom_margin=”0px||||false|false” custom_padding=”0px||0px||false|false” disabled=”on” global_colors_info=”{}”][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.27.0″ _module_preset=”default” collapsed=”on” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-1a.png” title_text=”handbook-1a” admin_label=”handbook image 1a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-2a.png” title_text=”handbook-2a” admin_label=”handbook image 2a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-3a.png” title_text=”handbook-3a” admin_label=”handbook image 3a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-4a.png” title_text=”handbook-4a” admin_label=”handbook image 4a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-5a.png” title_text=”handbook-5a” admin_label=”handbook image 5a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-6a.png” title_text=”handbook-6a” admin_label=”handbook image 6a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-7a.png” title_text=”handbook-7a” admin_label=”handbook image 7a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-8a.png” title_text=”handbook-8a” admin_label=”handbook image 8a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-9a.png” title_text=”handbook-9a” admin_label=”handbook image 9a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-10a.png” title_text=”handbook-10a” admin_label=”handbook image 10a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook11a.png” title_text=”handbook11a” admin_label=”handbook image 11a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-12a.png” title_text=”handbook-12a” admin_label=”handbook image 12a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-13a.png” title_text=”handbook-13a” admin_label=”handbook image 13a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-14a.png” title_text=”handbook-14a” admin_label=”handbook image 14a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-15a.png” title_text=”handbook-15a” admin_label=”handbook image 15a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-16a.png” title_text=”handbook-16a” admin_label=”handbook image 16a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-17a.png” title_text=”handbook-17a” admin_label=”handbook image 17a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-18a.png” title_text=”handbook-18a” admin_label=”handbook image 18a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-19a.png” title_text=”handbook-19a” admin_label=”handbook image 19a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-20a.png” title_text=”handbook-20a” admin_label=”handbook image 20a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-21a.png” title_text=”handbook-21a” admin_label=”handbook image 21a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-22a.png” title_text=”handbook-22a” admin_label=”handbook image 22a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-23a.png” title_text=”handbook-23a” admin_label=”handbook image 23a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/handbook-24a.png” title_text=”handbook-24a” admin_label=”handbook image 24a” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text disabled_on=”on|on|off” _builder_version=”4.17.1″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Downloads<\/strong> \u2013 click on the image to download the handbook<\/p>\n[\/et_pb_text][et_pb_image src=”https:\/\/spamarvel.com\/wp-content\/uploads\/2022\/03\/handbook-sm.webp” alt=”The Hot Tub Handbook” title_text=”handbook-sm” url=”https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/12\/HotTubHandbook-InstructionBooklet-webversion.pdf” url_new_window=”on” src_tablet=”https:\/\/spamarvel.com\/wp-content\/uploads\/2022\/03\/handbook-sm.webp” src_phone=”https:\/\/spamarvel.com\/wp-content\/uploads\/2022\/03\/handbook-sm.webp” src_last_edited=”on|phone” disabled_on=”on|on|off” _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"
The Hot TubHANDBOOKA Guide to Spa Water Care GETTING STARTED1 Start With Better Water1 Use Spa Marvel1 HOW TO USE SPA MARVEL2 Step 1 – Initial Fill2 Step 2 – Using Spa Marvel Cleanser 3 WATER CARE BASICS 4 Water Balance4 Testing4 Alkalinity & pH 5 Calcium Hardness7 Sanitation8 Absentee Spa Owners 9 Effects of […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-13010","page","type-page","status-publish","hentry"],"yoast_head":"\n
Hot Tub Handbook - Spa Marvel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/spamarvel.com\/fr\/hot-tub-handbook\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hot Tub Handbook - Spa Marvel\" \/>\n<meta property=\"og:description\" content=\"The Hot TubHANDBOOKA Guide to Spa Water Care GETTING STARTED1 Start With Better Water1 Use Spa Marvel1 HOW TO USE SPA MARVEL2 Step 1 - Initial Fill2 Step 2 - Using Spa Marvel Cleanser 3 WATER CARE BASICS 4 Water Balance4 Testing4 Alkalinity & pH 5 Calcium Hardness7 Sanitation8 Absentee Spa Owners 9 Effects of […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/spamarvel.com\/fr\/hot-tub-handbook\/\" \/>\n<meta property=\"og:site_name\" content=\"Spa Marvel\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-25T20:49:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/11\/HB-page18.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"21 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/\",\"url\":\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/\",\"name\":\"Hot Tub Handbook - Spa Marvel\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/spamarvel.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/spamarvel.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/HB-page18.png\",\"datePublished\":\"2022-06-04T17:40:11+00:00\",\"dateModified\":\"2026-02-25T20:49:44+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/#breadcrumb\"},\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-CA\",\"@id\":\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/#primaryimage\",\"url\":\"https:\\\/\\\/spamarvel.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/HB-page18.png\",\"contentUrl\":\"https:\\\/\\\/spamarvel.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/HB-page18.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/spamarvel.com\\\/hot-tub-handbook\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/spamarvel.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Hot Tub Handbook\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/spamarvel.com\\\/#website\",\"url\":\"https:\\\/\\\/spamarvel.com\\\/\",\"name\":\"Spa Marvel\",\"description\":\"As Chemical Free as your Spa Can Be\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/spamarvel.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-CA\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hot Tub Handbook - Spa Marvel","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/spamarvel.com\/fr\/hot-tub-handbook\/","og_locale":"fr_CA","og_type":"article","og_title":"Hot Tub Handbook - Spa Marvel","og_description":"The Hot TubHANDBOOKA Guide to Spa Water Care GETTING STARTED1 Start With Better Water1 Use Spa Marvel1 HOW TO USE SPA MARVEL2 Step 1 - Initial Fill2 Step 2 - Using Spa Marvel Cleanser 3 WATER CARE BASICS 4 Water Balance4 Testing4 Alkalinity & pH 5 Calcium Hardness7 Sanitation8 Absentee Spa Owners 9 Effects of […]","og_url":"https:\/\/spamarvel.com\/fr\/hot-tub-handbook\/","og_site_name":"Spa Marvel","article_modified_time":"2026-02-25T20:49:44+00:00","og_image":[{"url":"https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/11\/HB-page18.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"21 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/spamarvel.com\/hot-tub-handbook\/","url":"https:\/\/spamarvel.com\/hot-tub-handbook\/","name":"Hot Tub Handbook - Spa Marvel","isPartOf":{"@id":"https:\/\/spamarvel.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/spamarvel.com\/hot-tub-handbook\/#primaryimage"},"image":{"@id":"https:\/\/spamarvel.com\/hot-tub-handbook\/#primaryimage"},"thumbnailUrl":"https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/11\/HB-page18.png","datePublished":"2022-06-04T17:40:11+00:00","dateModified":"2026-02-25T20:49:44+00:00","breadcrumb":{"@id":"https:\/\/spamarvel.com\/hot-tub-handbook\/#breadcrumb"},"inLanguage":"fr-CA","potentialAction":[{"@type":"ReadAction","target":["https:\/\/spamarvel.com\/hot-tub-handbook\/"]}]},{"@type":"ImageObject","inLanguage":"fr-CA","@id":"https:\/\/spamarvel.com\/hot-tub-handbook\/#primaryimage","url":"https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/11\/HB-page18.png","contentUrl":"https:\/\/spamarvel.com\/wp-content\/uploads\/2025\/11\/HB-page18.png"},{"@type":"BreadcrumbList","@id":"https:\/\/spamarvel.com\/hot-tub-handbook\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/spamarvel.com\/"},{"@type":"ListItem","position":2,"name":"Hot Tub Handbook"}]},{"@type":"WebSite","@id":"https:\/\/spamarvel.com\/#website","url":"https:\/\/spamarvel.com\/","name":"Spa Marvel","description":"As Chemical Free as your Spa Can Be","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/spamarvel.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-CA"}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/spamarvel.com\/fr\/wp-json\/wp\/v2\/pages\/13010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spamarvel.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/spamarvel.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/spamarvel.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/spamarvel.com\/fr\/wp-json\/wp\/v2\/comments?post=13010"}],"version-history":[{"count":0,"href":"https:\/\/spamarvel.com\/fr\/wp-json\/wp\/v2\/pages\/13010\/revisions"}],"wp:attachment":[{"href":"https:\/\/spamarvel.com\/fr\/wp-json\/wp\/v2\/media?parent=13010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}