What pool chemicals contain cyanuric acid?

Author: Maribel Johnston  |  Last update: Tuesday, June 28, 2022

Dichlor and trichlor contain both chlorine and cyanuric acid so it is not necessary to add cyanuric acid to the pool water. Stabilizer (aka cyanuric acid) is also sold at most pool supply stores. Cal-hypo and liquid chlorine do not contain stabilizer.

What raises cyanuric acid in a pool?

Test strips are the easiest way to test cyanuric acid in your pool. Cyanuric acid is raised by adding chlorine stabilizer containing cyanuric acid. The only way to lower cyanuric acid is by replacing water.

What chemicals contain cyanuric acid?

Cyanuric acid is available as a granular solid and as a liquid (sodium cyanurate). Most commonly, however, cyanuric acid is found in stabilized chlorines dichlor and trichlor. These stabilized chlorines have about 50-58% CYA in their formulas.

Is there another name for cyanuric acid?

One of the most common chemicals used for the prevention of chlorine loss in swimming pools is Cyanuric Acid (also called CYA, Conditioner, or Stabilizer) it protects the free chlorine from being destroyed by the sun ultraviolet rays.

Does Clorox chlorine have cyanuric acid?

Clorox has absolutely NO Cyanuric Acid (CYA) in it nor does it increase CYA at all when you use it. You should show them. It's mostly water, then sodium hypochlorite (i.e. chlorine), and sodium chloride salt, and then a small amount of sodium hydroxide and a very small amount of sodium polyacrylate.

Cyanuric Acid - What You Need To Know

Does pool shock contain cyanuric acid?

weak bond with the free chlorine in the pool water. Shock does not contain any cyanuric acid, so after 24 hours, the elevated amounts of chlorine are no longer in the pool.

Does a saltwater pool need cyanuric acid?

Saltwater pool manufacturers recommend maintaining cyanuric acid levels around 60-80 ppm. This is a bit higher than the 30-50 ppm range recommended for non-saltwater pools. And if you live in an area where your pool gets a lot of direct sunlight, you may even consider bumping your cyanuric acid up to 80-100 ppm.

Is chlorine stabilizer the same as cyanuric acid?

In the pool industry, Cyanuric Acid is known as chlorine stabilizer or pool conditioner. Cyanuric Acid (CYA) is a pool balancing product used to help chlorine last longer. Chlorine, in its natural form, is unstabilized—which means it degrades when exposed to sunlight.

Is muriatic acid the same as cyanuric acid?

Yes both cyanuric acid and muriatic acid are both acids but they serve different purposes for the pool owner. Cyanuric acid has the chemical formula CNOH, whereas muriatic acid is a diluted form of hydrochloric acid, HCI.

Does tap water contain cyanuric acid?

Cyanuric acid is present in drinking water when chemicals commonly referred to as dichlor (anhydrous sodium dichloroisocyanurate or sodium dichloroisocyanurate dihydrate) or trichlor (trichloroisocyanuric acid) are used as alternative free chlorine sources.

Does organic chlorine contain cyanuric acid?

Inorganic and Organic Chlorine

They require the addition of cyanuric acid to be stabilized when used in outdoor pools. These products are recommended for indoor swimming pools. Organic chlorine compounds are products combined with cyanuric acid.

Does baking soda lower cyanuric acid?

No, cyanuric acid and baking soda work in very different ways in your pool. Baking soda raises the total alkalinity in your pool. But baking soda does not protect or stabilize your chlorine, like CYA.

Do indoor pools need cyanuric acid?

Cyanuric acid and stabilized chlorine (dichlor or trichlor) may be used in outdoor swimming pools only. It must not be used in indoor swimming pools, therapy pools, spas and hot tubs, or in pools using a bromine sanitizer. Cyanuric acid levels must never exceed 90 ppm.

Is muriatic acid Hydrochloric acid?

Muriatic acid is one of the names for hydrochloric acid, a corrosive strong acid. It is also known as spirits of salt or acidum salis. "Muriatic" means "pertaining to brine or salt". The chemical formula for muriatic acid is HCl.

Do chlorine tablets raise CYA?

A chlorine tab has two side effects that most pool owners don't realize: It has a pH of 2.9 but more importantly, it lowers Total Alkalinity (TA). It is 52% cyanuric acid (aka conditioner or stabilizer) by weight and each one increases the cyanuric acid level (CYA) in your pool water.

What do I add to my pool if the cyanuric acid is low?

The problem with low cyanuric acid is chlorine degrades quickly in the presence of sunlight. Chlorine is rendered completely ineffective within a few hours of sun exposure. If you didn't have cyanuric acid in your pool or it was low, you'll find that you need to add a lot more chlorine to have effective sanitization.

Do hot tubs need cyanuric acid?

Do you need cyanuric acid in a spa or hot tub? Yes! If you are using a chlorine sanitiser, you do need to use cyanuric acid to get help your chlorine work efficiently. Without cyanuric acid, your chlorine level can drop from the ideal range to zero in less than two hours when exposed to the sun.

Is baking soda a pool stabilizer?

Baking soda, also known as sodium bicarbonate is naturally alkaline, with a pH of 8. When you add baking soda to your pool water, you will raise both the pH and the alkalinity, improving stability and clarity. Many commercial pool products for raising alkalinity utilize baking soda as their main active ingredient.

How do you make cyanuric acid?

There are two ways for preparing cyanuric acid from urea. One is by heating urea at high temperature (≥ 250 °C) without solvent, and the other is the trimerization of urea in a solvent, with or without a catalyst [6,7,8,9].

Is Borax a pool stabilizer?

Borax is tremendously effective at stabilizing alkalinity and acting as a pH buffer in swimming pools.

Does Clorox shock have CYA?

Hi Orin, We are the manufacturer of Clorox Pool and Spa products. This granular shock does contain CYA. We recommend shocking every week during pool season and this product works well for that application.

What chemical is in pool stabilizer?

Pool stabilizer is made from cyanuric acid (CYA). CYA slows down how quickly chlorine evaporates so that chlorine will stay in the water longer. CYA works by binding to chlorite ions in chlorine and protecting them from UV ray damage.

What is dichlor for pools?

Dichlor, short for Dichloro-S- Triazinetrione, is one type of chlorine available for keeping pool water clean. Similar to trichlor, a different kind of chlorine, dichlor is usually granular but can also be found in tablets. You can buy dichlor in one-pound bags or in bulk.

What does muriatic acid do for a pool?

Along with balancing the pH levels of your pool water, muriatic acid is strong enough to kill mold, remove rust stains, get rid of calcium deposits, and clean the surfaces of your pool.

Will low cyanuric acid make pool cloudy?

Answer: Cyanuric acid shouldn't be at Zero for an outdoor swimming pool because chlorine will deplete faster in hot and humid weather, leading to cloudy water. If your FC is at normal level of 3ppm, raise Cyanuric acid level to 40 ppm and you will reduce chloramine levels that make your water appear cloudy.

Previous article
Does dirt show more on light or dark floors?
Next article
What to clean laminate cabinets with?