Water Quality Questions
Spa Marvel users should expect to enjoy clear, odour free water at all times. On very rare occasions some users have occasionally experienced less than perfect water and have sought assistance. Below are answers to these infrequently asked questions:
Foamy Hot Tub Water
Spa Marvel reduces surface tension of the water, which removes the platform necessary for detergent-based foaming to occur. Foaming caused by detergents typically doesn’t happen in Spa Marvel tubs. Persistent foaming in a Spa Marvel tub is usually caused by one of four things:
- Low pH and/or alkalinity.
- Water that is too soft.
- Dirty filters. Even a single bather who may have introduced some type of contaminant, like a body lotion/cream etc. can foul a filter, resulting in foaming.
- Certain filter cleaning products can cause foaming if the filter cleaner is not rinsed thoroughly from the filter. Spa Marvel Filter Cleaner does not cause foaming. Always ensure that filter cleaning agents are thoroughly rinsed from the filter pleats after cleaning.
Film on Spa Walls
Spa Marvel contains positively charged ions and your spa surface has a negative charge. Occasionally a bond between these two charges will occur resulting in a slight film that may develop on the spa walls. Simply wipe the surface with your hand or a cloth (rinsed well to remove any existing detergents) to break this bond. The bonding also creates a natural lubricant that allows your spa’s mechanical components and heaters to work better.
Musty Odour in hot tub
Musty odours are typically a result of contaminants that have accumulated in the spa’s filters or are caused by musty water that drips from the spa cover back into the tub.
Properly clean filters using a product such as Spa Marvel Filter Cleaner, and clean the spa cover. If odour persists, shock the water.
Caused by the development of algae in the spa. Shock the water with 30 grams (2 tablespoons) of sanitizer per 1000 litres (250 gallons) of spa water.
Cloudy or Discoloured Spa Water
If these conditions occur within the first week of using Spa Marvel it is typically a case of the Spa Marvel Cleanser having not been able to completely remove all contaminants from the plumbing of the spa. Spa Marvel Water Treatment & Conditioner will, over a period of time, loosen these contaminants causing them to be released into the spa water. You will now experience stronger jets, quieter pumps and more efficient heating elements, but as the contaminants are released into the spa water you may experience a combination of cloudy or discoloured water, major changes in pH, foam and odours. In brand new spas these conditions may occur as the spa off-gasses and Spa Marvel removes other contaminants leftover from the manufacturing process.
High pH and/or high alkalinity can also cause cloudy water.
If these conditions occur after the first week of the introduction of Spa Marvel it is typically a result of low filtration times and/or dirty filters. Ensure that your filter is properly cleaned and that the spa is scheduled to filter a minimum of 6 hours per day.
To correct these conditions:
- PROPERLY clean filters with a product such as Spa Marvel Filter Cleaner.
- Shock the spa water.
- Add a water clarifier.
- Increase sanitizer level.
- Check alkalinity (80 – 150 or as directed by your professional spa retailer), and pH (7.2 – 8.2) and adjust if necessary by using traditional spa-water balancing products To ensure great water quality, be sure to use the best hot tub chemicals, which are available from your professional spa retailer. The acceptable range for pH when using Spa Marvel is much broader than when using traditional spa care products, so please take care to read your testing devices properly.
- Allow the tub to circulate/filter continuously (or as much as it can) for 24 hours for these steps to work, then re-clean the filter.
If after 24 hours the water is still not perfect, repeat the above steps. If after repeating these steps you are STILL experiencing difficulty, please contact our Solutions Department for further assistance.
Solutions Department: firstname.lastname@example.org or call 1-888-400-1772
Greenish/Yellowish/Brownish Tint in hot tub
Tinges of colour occur when minerals in the source water oxidize (rust). It won’t hurt you, it just looks bad.
To correct this, shock the water with 30 grams (1 ounce) of chlorine or bromine per 1000 litres (250 gallons) of water. Twenty four hours later if the water is not clear, check the chlorine/bromine reading. If the reading is below 3 ppm, shock it again. If it is above 3 ppm, wait another 24 hours and check again. Multiple treatments may be necessary.
Flakes in the hot tub water
Flakes that are in your spa resembling pieces of skin, or may be akin to pieces of tissue paper in the water are indicative of white mould in your plumbing.
White mould is an airborne spore that comes from trees, and develops in areas left damp such as garden hoses, dehumidifiers, sump holes, children’s bathtub toys, hot tub filters that are left outside and reinstalled while not completely dry, swimming pools and hot tubs.
White mould can be introduced to spa plumbing from wet testing at the time of manufacturing, or in the time between when it was drained at the showroom till the time it gets to your house. It can occur if you drain your tub and don’t refill it for a few days. White mould can also be introduced to spa water when filled from a garden hose that has developed some white mould while lying out in the sun and sometimes it just drifts into your spa water while the lid is open.
White mould can even remain in your tub and be kept at bay for months and years by conventional sanitizers such as bromine and chlorine. If you go an extended period of time without adding chlorine, the white mould can proliferate to a point that it becomes apparent (often 6-8 weeks before you notice it). Left unattended white mould can overwhelm your spa.
One of the best hot tub chemicals to kill white mould is granular chlorine, which is used to super-chlorinate the water. Remove any headrests and leave the lid open for at least the first hour while performing this treatment. Add 2.5 ounces (5 tablespoons, 75 grams) of chlorine per every 100 gallons (400 litres) of spa water or part there of.
For this treatment to be effective it is imperative that the chlorinated water is distributed throughout the entire plumbing system. Ensure that all jets, valves, waterfalls, water features, aerators and diverters are open and are subjected to the chlorine. If your tub has a drain next to the pump or at the base of the cabinet to which you can attach a hose to facilitate draining, ensure that some of the chlorinated water is bled through the drain at the onset of this procedure. This is very important to do because any built in drains are a dead end in the plumbing and the chlorine will not naturally make its way down to that part of the plumbing, but the mould will.
Check the chlorine reading after 24, 48 and 72 hours. If at any of these intervals the chlorine is anything less than ridiculously high (20ppm), treat the tub again with chlorine and start the clock over on the 72 hour time period.
Do not use the spa during this process.
It is important to note that the chlorine will kill the white mould so that it doesn’t continue to grow, but it will not make the flakes vanish.
After 72 hours of successful chlorination:
- Remove your filter and clean it. Properly cleaned filters are pivotal to successful spa water care.
- Using a filter soak such as Spa Marvel Filter Cleaner is recommended. After soaking the filter in filter cleaner it is critical that the debris is thoroughly removed from the pleats of the filter. The water pressure from showers, dishwashers and kitchen sinks is often not strong enough to remove the debris. If after rinsing your filter there is still discolouration in the pleats or if it still smells dirty, then it is not clean and you need to reevaluate your current filter cleaning techniques. Many people use a pressure washer (gently and carefully) to quickly and effectively remove the debris after soaking the filter. If you do not have access to a pressure washer, the sprayer at the coin-operated car wash works well. Most reusable hot tub filters ought to be replaced after 6 months of use.
- Add the bottle of Cleanser (small green bottle) to the tub and run the jets on high-speed for 1 hour. Longer is fine, but for what we are doing 1 hour will suffice.
- Drain the spa.
- Rinse everything out, run a little fresh water through the filter well, and through each jet for a few seconds. Do your best to remove all of the old water.
- Install the clean filter and refill the tub. When a tub is drained there are still several gallons of water that are in the plumbing, and this water can contain leftover flakes of white mould. When you fill the spa, turn all of the jets on and if you see a lot of the flakes come out of the plumbing, drain and fill the spa again. If there are only a few flakes your filter will pick them up or they can be manually removed.
- Carry on as before.
Salt-Like Crystals on the Spa Walls
This condition is caused by alkalinity and/or pH being too high, which allows calcium to precipitate from the water and attach to the spa walls, leaving a rough, unpleasant surface. To correct this, balance alkalinity (80 – 150 or as directed by your professional spa retailer) and then pH (7.2-8.2) by using traditional spa-water balancing products available from your professional spa retailer. The acceptable range for pH when using Spa Marvel is much broader than when using traditional spa care products, so please take care to read your testing devices properly.
Manually scrub the buildup from the spa walls, being certain not to use anything abrasive. pH and alkalinity adjusting products are amongst the safest hot tub chemicals that you may use, and are much safer than having unbalanced water in your spa, which could damage equipment and affect bather comfort. See your professional spa retailer for a scrubber designed to safely clean the surface of your spa walls, or at a minimum do not use anything that you wouldn’t use on a Teflon frying pan or on the paint of your car. Once the crystals are removed they will go back into solution.
There are several reasons as to why your alkalinity or pH were too high and caused this:
- The source water was not balanced on the initial fill.
- Due to evaporation or spillage, you have recently added large amounts of un-balanced water to the existing spa water, which raised the alkalinity and/or pH.
- There was still debris in the plumbing of your spa that was not removed during the cleansing process. As Spa Marvel reintroduces the debris to the spa water it can cause fluctuations in pH and alkalinity.
- Your tub is not filtering/circulating often enough. Spa Marvel works best at a minimum 6 hours a day of circulation/filtration, and if it is getting less than that it may cause the water to go out of equilibrium and then the ph and alkalinity will not be properly maintained.