Asked by: Fred Hirschmann
business and finance commodities

How much is CYA in Trichlor?

Last Updated: 4th June, 2020

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Both dichlor and trichlor are over 50% CYA by weight. Daily application can easily lead to a concentration of 80 parts per million (ppm) CYA. For every pound of trichlor added (roughly two 3" tablets) to 10,000 gallons of water, the CYA increases 7 ppm.

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Also, how much is CYA in Trichlor puck?

Since for every 1 ppm FC from Trichlor you get 0.6 ppm CYA, Just adding 2 ppm FC per day of chlorine from Trichlor over 5 months is 180 ppm CYA. 70,000 liters is about 18,500 gallons and one 3" puck, if it's an 8-ounce puck (some are 7 or 6) adds 3.0 ppm FC and 1.8 ppm CYA every 2 days.

Beside above, does Dichlor have cyanuric acid? Dichloroisocyanuric Acid: Also known as “dichlor,” this is another type of chlorine shock. Dichlor contains both chlorine and cyanuric acid and will, over time, raise your cyanuric acid levels.

Hereof, how much cyanuric acid is in Trichlor?

Trichlor contains 54% cyanuric acid.

Does shock raise CYA?

Cal hypo is the most powerful type of pool shock, making it great for super-chlorination. Calcium hypochlorite does not contain any cyanuric acid (CYA), therefore it will not raise the CYA level in your pool. Power Powder Plus is safe for all pool types, but may cause bleaching on certain surfaces.

Related Question Answers

Arvydas

Professional

How many pucks are in a chlorinator?

This amount will allow your pool to have enough chlorine but will also keep the stabiliser in check. To know the exact amount of pucks your best bet is to come see us in store where we can give you a personilized plan that fits your pool, but on average you want to keep your puck use under three pucks a week.

Radu Fosbenner

Professional

Does CYA reduce over time?

Yes, entirely possible. As you point out, there is a testing variance to consider and CYA will naturally degrade a few ppm per month, maybe a little more.

Bakasura Dunte

Professional

Does CYA evaporate?

When water evaporates, CYA stays behind and stays in the water for a long, long time. For the most part, CYA levels can remain very stable if you're not adding more of it to the water.

Carie Brandes

Explainer

Does adding CYA lower pH?

It is well known that CYA reduces the amount of “active” hypochlorous acid (HOCl) in the water. Lowry's chemical charts confirm that when the pH rises from 7.5 to 7.8, HOCl drops by only 10%, and when the pH rises from 7.8 to 8.2, HOCl drops by another 10%.

Nasim Ben Salah

Explainer

What causes high cyanuric acid?

It seems like stabilized chlorine use is the main reason for high levels of CYA. As water evaporates, CYA stays behind, just like calcium and salt.

Neu Gallagher

Explainer

What should my CYA level be?

You want your CYA levels to be between 30-50 ppm for a salt water generated pool, you will be looking at 70-80 ppm. Anything above 50 ppm or 80 ppm for salt water pools, will take longer to kill the bacteria in the water.

Shah Rehkopf

Pundit

Does tap water contain cyanuric acid?

Cyanuric Acid ("Conditioner" or "Stabilizer") will definitely need to be added after a pool is drained, cleaned and refilled, as the tap water that is used to refill your pool contains almost no Cyanuric Acid.

Ismaela Garcia Escudero

Pundit

How much TriChlor do I add?

Adding 1 lbs of 100% TriChlor (trichloro-s-triazinetrione) to a 10,000 gallon pool will give you 18 ppm Cl and 11 ppm of CYA. (These numbers come indirectly from "Pool & Spa Operator Handbook") Thus - a 35 lbs box of 90% TriChlor will add 338 ppm. to a 10,000 gallon pool.

Omnia Arguedas

Pundit

Is cyanuric acid necessary?

For this reason, it is essential that all outdoor pools using cyanuric acid as a stabilizer maintain the required free chlorine residual of 2.0-8.0 parts per million (ppm). both chlorine and cyanuric acid so it is not necessary to add cyanuric acid to the pool water.

Yixuan Larkings

Pundit

Does TriChloro s Triazinetrione contain cyanuric acid?

TriChloro-S-Triazinetrione – Cl3C3N3O3
Trichlor contains 52% of cyanuric acid by weight, and contributes 0.6 ppm of cyanuric acid is added to the water, for each 1.0 ppm of Free Chlorine added. One should never place chlorine tablets in the skimmer, or toss them directly into the pool.

Mahesh Lutticken

Pundit

Which is better Dichlor or Trichlor?

The key difference between trichlor and dichlor is that the Trichlor (or trichloro-s-triazinetrione) is a dry solid compound having the highest possible chlorine content (around 90%) whereas, the Dichlor (or dichloro-s-triazinetrione) is available as its dihydrate form or the anhydrous form.

Shujuan Twent

Teacher

Is it safe to swim in a pool with high cyanuric acid?

It is safe to swim in if you keep chlorine levels higher than normal. The cyanuric acid is not harmful itself. A free chlorine level of about 8 would be right for that level of cyanuric acid, if I'm remembering correctly. Your CYA level won't go down through evaporation.

Tifani Jagana

Teacher

How does cyanuric acid affect chlorine?

The amount of cyanuric acid in your pool greatly affects the disinfection, oxidation, and algae inhibition rates of the chlorine. Studies and research show that ORP levels drop with the introduction of more cyanuric acid (indicating that the chlorine is lowering in effectiveness).

Naser Burgui

Teacher

What pool chemicals contain cyanuric acid?

Cyanuric acid is sometimes abbreviated as CYA, and it's also called pool conditioner or pool stabilizer. It's sold in liquid or granule form. You can even get it mixed in with chlorine tablets or sticks, called trichlor, and in chlorine shock, called dichlor.

Rito De Huerga

Reviewer

How long does it take to add cyanuric acid?

It is recommended to wait at least 20 minutes to an hour after adding water balancing chemicals. You should wait 2-4 hours (or one full cycle through the filter) to swim from the moment you use calcium chloride in your pool.

Edivaldo Jdan

Reviewer

Is pool stabilizer necessary?

If you own an outdoor chlorine or saltwater-chlorinated swimming pool, proper stabilizer use will save you time and money on sanitizing agents. Sure, too much stabilizer can cause problems. Just be sure to keep an eye on it every week along with chlorine concentrations to ensure proper pool chemistry.

Kala GrossHoltick

Reviewer

Can you add too much shock to hot tub?

You only need a small amount of chlorine to successfully sanitize your spa, so it's possible to overdo it if you're not careful. Too much chlorine can damage your hot tub and irritate your skin, eyes and lungs.

Najma Wiemert

Reviewer

Why do I need cyanuric acid in my pool?

Cyanuric acid is known as a stabilizer for the chlorine in swimming pools exposed to sunlight. It helps reduce the chlorine loss by protecting the free chlorine in the pool from the sun's ultraviolet rays, reducing the amount of chlorine needed to maintain proper sanitizer levels.

Maleni Gorsk

Supporter

Does CYA dissipate?

Unlike chlorine, CYA does not dissipate, the only way to lower your stabilizer levels is to drain and refill a portion of your pool water.