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What is pool stabilizer?

Updated: 9/27/2023
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7y ago

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STABILIZERCyanuric acid holds chlorine in the pools water protecting it from losses caused by the sun. I a pool is not properly stabilized it may use up to 2 times as much chlorine. Stabilizer is usually added once at the beginning of the season
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16y ago
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7y ago

In Swimming Pools, "stabilizer" refers to cyanuric acid, or alternatively, isocyanuric acid. Also known as conditioner, pool stabilizer, CYA, or sun shield, cyanuric acid is usually in the form of a white powder or granular flakes.

It's used in outdoor swimming pools to protect the chlorine present in the water, which would otherwise be broken down by sunlight. Typical desired levels in outdoor pools range from 20 to 100 ppm, with manufacturers of automated feed systems for commercial pools advocating low levels, and manufacturers of salt chlorination units advocating much higher levels.

Stabilizer is also present in the two chemicals most often used to chlorinate home swimming pools, trichlor (trichloro-isocyanuric acid) and dichlor (sodium dichloro-isocyanurate). As a result, homeowners using these materials to treat their pools may find that their stabilizer has become very high, even though they have not knowingly added any stabilizer.

Swimming pool chemical stores tend to view this situation as an opportunity to encourage the pool owner to drain, or partly drain, their pool so they can refill with fresh water. This creates an opportunity for the store to sell the pool owners more chemicals to 'balance' their water.

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11y ago

AquaChem Stabalizer (granulated). Using an old panty hose footy, I fill it with the desired amount of Stabalizer, tie a knot in the end and place in the skimmer using a U-shape. I run the skimmer up to maximum flow and allow to circulate through cartridge filter and pool for 24 hours. Works great!

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11y ago

Cyan-uric Acid is already contained in chlorine tablets and therefore you will not need to add it separately. As a mater of fact, too much stabilizer will keep the chlorine from working. Hatawa

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13y ago

It keeps the chlorine much longer in the water - without stabilizer it disappears quickly in the sun.

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12y ago

Cyanuric acid

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10y ago

Pool shock it is liquid clorine

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Q: What is pool stabilizer?
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Related questions

Is pool stabilizer and shock the same?

No, pool shock is normally a really strong chlorine and stabilizer is like sunscreen for the chlorine


Is there a cheap substitute for pool stabilizer?

no


What to use when pool water won't hold chlorine?

you have to aid a conditioner or stabilizer with cynaric acid in it.


Cloudy pool free chlorine is not reading stabilizer is low but pH is ok?

Add chlorine and stabilizer.


What to do when your pool does not retain chlorine?

Ad cyanuric acid/stabilizer, this is available from your pool shop


When adding stabilizer to a salt water pool is the backwash running while pouring in the stabilizer?

When adding stabilizer to a pool you should not have a backwash valve open. Stabilizer should be added directly into the skimmer basket and you should open the skimmer all the way and close off the main drains for 24 hours.


Why cant you maintain free chlorine in your pool?

Have you tested cyanuric acid ( stabilizer ) ?


When do you add stabilizer to the pool?

Stabilizer is used to protect Chlorine from the UV rays of the sun. If chlorine is not protected from the sun, all the shock you added yesterday will be gone by lunchtime today. A normal stabizer level is around 40ppm (parts per million) if you get above 100 ppm your pool water can lock up and chemicals will become inactive. Also note: if your level becomes too high the only way to lower it is to exchange water in the pool. If you use a stabilized chlorine, it will, over time increase your stabilizer level in the pool. So be careful not to over stabilize. It is better to error on the side of under stabilize the to over stabilize. Stabilizer is also known as Cyanuric Acid


Stablize pool chemicals?

Please ask a question. If you are asking what stabilized pool chemicals are, then research the pool chemical Cyanuric Acid. That is the actual product "Stabilizer" while cyanuric acid also makes up around 10% of quality chlorine tablets and the chlorine shock Sodium Dichloro-s-triazine-trione. The "S" in the middle there stands for stabilizer. All the stuff is is a layer of "Sunscreen" for your chlorine.


What happens when swim with to much stabilizer the pool?

There are no known ill effects from too much stabilizer in the pool. Most health departments require draining if stabilizer is more than 100 ppm. But most agree that even up to 150 ppm causes no harm to humans. High levels do cause a slower chlorine reaction to contaminants. It was previously thought that high stabilizer levels resulted in chlorine lock, but that has been proven to be false.


What are the ingredients in pool chlorine?

Pool Chlorine are generally used as stabilizer and conditioner and they mainly comprise of Cyanuric acid, popularly Known as CYA. It decreases the rate of decay of chlorine in the pool by sunlight.


Can you buy chlorine tablets for swimming pools without stabilizer?

I have never heard of one without stabilizer. Although the recommended range of stabilizer in a pool is 30-50 ppm, you can have 100 ppm without any adverse affects on health or water chemistry balance.