Quick Answer: Does CYA Degrade?

Does CYA dissipate?

CYA is added to Chlorine to stabilize it and keep it from dissipating into gas within a matter of hours in the sun.

Unfortunately, Chlorine does eventually evaporate or is used up in sanitizing your pool, leaving accumulating CYA in your pool as you replace the chlorine..

Does CYA affect pH?

It is well known that CYA reduces the amount of “active” hypochlorous acid (HOCl) in the water. But what is not well-known is that when the pH rises slightly in pools containing CYA, the amount of HOCl remains almost the same, and therefore, has nearly the same sanitizing efficacy and bacteria killing power.

Does shock contain cyanuric acid?

2. 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. For more information on cyanuric acid, please see our blog post Cyanuric Acid: Friend or Foe.

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.

What should my CYA level be?

Experts recommend between 30 and 50 ppm CYA for the right balance, and regulation requires less than 100 ppm CYA. But what happens when your pool’s levels rise above this? The chlorine can’t do its job – it’s bound to the CYA, instead of being free and available to sanitize and oxidize. That makes for a germy pool.

Why is high CYA bad?

The only “bad” aspect of a high CYA level (over 100 ppm) is that the Total Dissolved Solids (TDS) will escalate, interfering with the chlorine’s bacteria and algae killing ability. Sometimes high levels of CYA can cause a condition called “purple” or copper cyanurate.

Does CYA reduce over time?

RGS. ping said: CYA does reduce over time and a deep end discussion about it is in this thread, Degradation of Cyanuric Acid (CYA).

Is cyanuric acid harmful?

Although cyanuric acid offers a low level of toxicity without any serious health concerns, having high-levels of this chemical in a pool puts people at risk because of the chlorine’s diminished ability to kill bacteria and viruses.

What neutralizes cyanuric acid?

Dilute your pool water if the levels are above 80 ppm. The easiest way to lower the levels of cyanuric acid in your pool is to simply dilute the water. … It’s easier to add cyanuric acid to the pool than it is to remove it, so it’s better to overcompensate and dilute the water more than you think you need to.

What happens when cyanuric acid is too high?

When cyanuric acid levels get too high, it can cause something referred to as chlorine lock, which basically means your chlorine has been rendered useless. You’ll know it has happened when your chlorine test shows very or little chlorine even right after you’ve added it to the pool.

What raises cyanuric acid in a pool?

Cyanuric acid levels are raised by adding pool stabilizer. It’s called stabilizer because cyanuric acid stabilizes free chlorine from being evaporated by the sun.

Is CYA 100 too high?

Too Much Cyanuric Acid To lower the levels of CYA, there is no magic potion (yet, but we’re working on it!). … If your cyanuric acid level was at 100 ppm (way too high), and you want to lower it to 50 ppm, you will need to replace half the pool water (assuming your fill water has 0 ppm of CYA).