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Miscellaneous Spa Chemicals

Special chemicals for specific needs.
The Pool and Spa Informational Website or

Some Lesser Known Spa and Hot Tub Chemical Products.


Scroll down to browse through some archived SPA and Hot Tub questions and answers.  Please click the Spa Topics Link, on top of every page, to access a complete listing of Spa and Hot Tub Problem subjects, an alphabetized Website Table of Contents, Spa and Hot Tub Equipment Information, About Alan Biographic Material and a Spa and Hot Tub Glossary. Use the other links to access additional subject information. More information about some new and unique products, for Spas and Hot Tubs, can be found by visiting The Website Store. You'll never know what you'll find and that's always fun. Be better prepared and avoid costly problems!


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Many spa water problems require a different chemical approach.
The water used to fill or top off a spa can contain dissolved metals and unwanted contaminants.  Usually, after chlorine and pH control chemicals are added, discoloration and staining can follow, if the water contains iron, copper or manganese.  Testing the water, before it is added, will alert you to the presence of a potential problem.  A MetalTrap Filter or MetalTrap Dual-Cartridge Filter can help you remove any dissolved metals and sediments, avoiding staining and discoloration problems.  If the underwater surfaces have stains, a MetalTrap Stain Reversal Kit contains everything to dissolve the stains, eliminate the stain-causing metals from the water and help prevent a recurrence.  TotalTrap - Pool Refresh can be used to remove dissolved heavy metals and phosphates, by vacuuming to waste or filtration.
Removing Heavy Metal, at the source Stain Reversal Kit, for Pools and Spas Removing Heavy Metals and Phosphates
MetalTrap Fiters MetalTrap Stain Reversal Kit, for pools and spas Pool Refresh TotalTrap removes phosphates and metals.
Product and Ordering Information Product and Ordering Information Product and Ordering Information

If you have a pool or spa water testing need, we should have the product.
Scroll down to read through some Question & Answer information.
A ColorQ, all digital Water Tester can perform all of the common tests, while eliminating the color-matching and guesswork.  With 10 models, performing up to 11 different test factors, one is right for every need.  An Automatic Filter Cartridge Cleaner will save time and effort and get your filter cartridge, cleaner than ever.  A spa leak can be a troublesome thing  Fix A Leak has been sealing all types of spa leaks, for over 35 years.  Easy to use and surprisingly effective.
ColorQ All-Digital Water Testers Automatic Filter Cartridge Cleaner Fix A Leak seals common spa leaks
ColorQ PRO 7 all digital pool and spa tester. Automatic Filter Cartridge Cleaners, for pools and spas. Fix A Leak sealant for pools, spas, fountains and more.
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If you have a pool or spa water testing need, we should have the product.
Scroll down to read through some Question & Answer information.

How to use some of the less common pool chemicals?

As the spa and hot tub industry has matured, specialty chemical products have evolved. There are specific products - for specific problems!  Various products make maintenance easier or more effective and choosing the right product for the task can help assure a better prospect of success, as well as saving time and money. If problems arise, refer to the Spa Problems Page, as a source of problem-solving information, broken down into various categories.  Scroll down the page and click on the linked keywords, catch phrases or images, in the archived answers below, to access additional information, on that topic or product.

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▼     Helpful, Problem-Solving Information, in a question and answer format.     ▼

Enzyme Use Causing Foaming?

We have a large swim spa, 1,950 gallons, new last summer. 3 of us use it regularly, at least 4-5 times per week. We try hard to keep the water clear and balanced, although itís still a learning curve. We recently decided to add an enzyme product to help with summer lotions, self-tan, etc. The addition of enzyme seems to create foam! We are using it once a week, but each time I end up scooping out foam. Later the spa seems to clear up, but Iím wondering what is going on. I had the water tested last week, made adjustments, but still got the foam. It is a swim spa, with mineralizer filter, regular filter system, and ozonator. We use small amount of chlorine each use and shock with non-chlorine.

Lynnda,  5/26/2019

Enzymes can help speed the decomposition of organic wastes. To help accomplish this, some enzyme products contain wetting agents or surfactants, added to help improve their performance. These additives can cause some foaming. The enzyme products are based on proprietary formulas and do not all contain the same ingredients or the same concentrations. If the foaming is the only problem, I suggest switching to another brand. A spa professional might help you make a better selection, if the circumstances are explained. Adding some spa anti-foam might help solve or control the problem.  I hope that this is helpful.


Alan Schuster

Enzyme Spa Sanitizer?

Alan, I was wondering if you could share some info on a spa sanitizer, that is an enzyme powered sanitizer. It sounds too good to be true. Is there a catch with this product? Thanks.

Don S., 10/16/2017

Enzymes are not sanitizers. All sanitizers must have an EPA registration number. Look for it.  This pro
duct might help reduce chlSmarterSpa complete unitorine requirements, but it is neither a sanitizer or oxidizer. I like to be able to measure a sanitizer level. Free chlorine is the active sanitizing form of chlorine and the recommended level is 1-3 PPM. Very much higher levels can be irritating. As a backup to chlorine and to allow good results, while maintain a lower chlorine level, you might consider adding an EPA registered spa sanitizer and disinfectant and will help you maintain a suitable free chlorine level and maintain proper sanitation. A salt chlorine generator can do that, while avoiding many of the issues, associated with traditional chlorine products.  To further improve the water quality, an Ozone Generator will make a big improvement and reduce chemical usage. It will provide oxidation and reduce chlorine usage, even more.  I hope that this information will prove helpful.

Sincerely. Alan Schuster 10/17/2017

Cyanuric Acid In A Spa?

Alan, awesome website. I just bought the ColorQ Digital Water Analyzer and love it, as I'm colorblind. I've never tested Cyanuric Acid before, and with the ColorQ, I received a reading of "LOW" which means it is too low for the ColorQ to register it (and according to LaMotte, it is accurate +/- 10 when it is between 0-80). Here's my question: If my ColorQ says there is no Cyanuric Acid, and I have a hot-tub with a cover on all the time, do I care? Should I somehow get the Cyanuric Acid up? If so, how? Thank you for your awesome website! Regards.

Joseph F., 9/25/2018

Glad to hear the you are happy with the ColorQ Digital Water Analyzer. You do not need to have any cyanuric acid present. A
zero reading is expected, in a freshly filled spa or one that has not been using dichlor. If you are using bromine, none is being contributed by the chemicals and none is required. I hope that this has resolved the matter. Enjoy the hot water experience and thank you for the purchase of the ColorQ.
Sincerely. Alan Schuster, 9/25/2018

Will Fix A Leak Work?

I have a 5-6 person hot tub outside in North Dakota. Our temperature is dropping and my hot tub is leaking. I have had so many problems with it this past year. Put in a new circuit board and new pump, 2 new sensors and a flow switch. It was finally up and running and has now started to leak, approximately Ĺ - 1 inch per day. There is no water in the equipment compartment. I removed one side panel and could not see any plumbing - it has that sprayed in insulation. It sits on my deck and I can see water dripping underneath. Is this something that the fix-a-leak stuff would fix? Thanks much.

Deb, North Dakota, 10/12/2010

The letter below was received immediately prior to yours. Yes, it can work, in a great many cases, and this letter says it all. For ordering information go to The Fix A Leak Store.

Sincerely. Alan Schuster, 10/12/2010
Fix A Leak is available in pool and spa sizes.
Alan, I purchased a bottle of Fix-A-Leak last month hoping to repair a leak in my 8-year old spa. The spa developed a leak 2 years ago around several fittings and had to be shipped back to the factory for repairs. And because of the foam insulation, there is no way I could
have located or repaired the leak myself. It cost me $900.00 to have the unit craned out and back into to my backyard the first time, but fortunately, it was still under warranty so the repair was free. With the warranty now over who knows what this repair would have cost. I applied the FIX A LEAK product, per the instructions and no more leak. The supplemental instructions, you supplied, were very helpful. It saved me the cost of factory repair. Thanks.

Ed F., Castro Valley, CA, 10/12/2010

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ChlorMaker Drape-Over Salt Chlorine Generator, for spas and swim spas. BlasterAutomatic Filter Cartridge Cleaners for pools and spas. Spa Thermal Cover Lifter Spa-Side Hand Rail. Water broom sweeps away dirt, debris and chemical spills.
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Enzymes In A Spa?

Can enzyme products be used to help deal with oily accumulations around the water line? Thanks.

C. M., Naples, FL, 12/19/2010

The removal of oily residues is one of the main uses of Enzyme products. Enzymes help to digest or decompose these organic deposits and help to prevent them from forming "soaps." The formation of these "soaps" will add to the foam problem. Regular additions are a good maintenance practice. Enjoy the spa.

Sincerely. Alan Schuster, 12/19/2010

Spa Water Clarifiers?

My spa water gets cloudy on occasion. It doesn't seem to be the water chemistry or the bromine level, as all tests seem to be within balance. Is this a filtering problem? Thank you for allowing the questions to be asked.

Joshua, Hicksville, NY, 2/27/2013

It certainly could be a filter problem, but it is difficult to say for sure. It could be bather waste products, debris and
byproducts. Adding an enzyme treatment can help decompose the waste products and help improve the water clarity. The regular, periodic addition of a spa formula clarifier can help improve the filter efficiency and help eliminate the spa water clarity problem.  I hope that the information helps to clear things up.

Sincerely. Alan Schuster, 2/27/2013

Benefits Of Enzyme Use?

My local spa dealer has been touting the benefits of using enzymes in spas. Exactly, what do they do? It is worth doing?

Leon H. Spartenburg, SC, 3/21/2012

Enzymes can do many beneficial things for your spa. Enzymes can help digest or biodegrade oily residues, bather wastes, cosmetic residues and organic byproducts. In turn, this can improve the appearance of the waterline area and the water clarity. And there
MegaChlor salt chlorine generator for spas, swim spas and pools up to 10,000 gallons.'s more. The oily residues can harbor bacteria and impede sanitation, cause an increase in foaming and require more frequent water replacement. Enzymes can help remove organic deposits from the filter cartridge and lead to better filter efficiency. If fact, the more the spa is actually used, the more likely it is that an enzyme will be of significant benefit. Enzymes work very well in spas and hot tubs because the warm water helps to speed up the degradation process. The end products of the process are harmless inerts and there are no residues to buildup. Yes, it is worth using! However, if it is being touted as a spa sanitizer, that is another matter.  Sanitizers must be registered, with the EPA, and enzymes are not registered.  While it can help improve spa water quality, sanitizing should be left to products such as salt chlorine generators, chlorine and bromine.  I hope that I have been helpful. Enjoy the spa experience.

Sincerely. Alan Schuster, 3/21/2012

Waxing A Spa?

Can I use auto wax on my spa?

Nameless, 2/23/2011

I have no idea what is in an auto wax and, whether or not, it is suitable for use on a spa. I suggest that you use a product especially formulated for use in a spa. Check with the spa manufacturer, as to care recommendations. Good luck.

Sincerely. Alan Schuster, 2/23/2011

Spa Fragrances?

I see products that are used to add a fragrance to the spa. Are they safe? Can I use cosmetic bath products? Thank you.

Joanne F., Arlington, VA, 4/9/2007

The spa fragrance items that are specifically formulated for use in the spa environment are safe to use. These products are not similar, in terms of their ingredients, to bath products. Spa water is not changed after each use. Bath water is. Do not use any cosmetic bath products in your spa. To do so might result in cloudy water, loss of sanitizer and oily residues. I hope that I have been helpful.

Sincerely. Alan Schuster, 4/9/2007

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A $9.99 handling charge will apply to Continental U.S. Orders, under $75.00.  Orders outside of the Continental U.S. may require some additional charge, based on quantity and destination.
Most products can be shipped World-Wide.  
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