What is cyan uric acid in pool water?

Answer 1

The constant use of small 1" , large 3" jumbo chlorine tabs and granular chlorine. they all have cyanurics acid in the compound mix. Best to switch to liquid for a while ( a month of so). The high levels of cyanurics will eventually drop as water evaporates and you add fill water. High levels of cyanuric acid or conditioner would be considered to be in excess of 100 ppm. You could also do a partial drain of the pool and refill to reduce the CYA faster.

In the future you might consider alternating between liquid 12% chlorine and tabs. Note: 1" tabs dissolve faster. HTH granular and tabs I believe do not contain conditioner but then it is a lesser grade of chlorine - see percentage values on label.

Answer 2

Cyanuric acid is the stabilizing agent for chlorine. Low levels will cause you chlorine level to drop very quickly. Be carefull when raising the Cyanuric acid level because there is no way to lower it other than removing some of the water and then refilling the pool.

Answer 3

If you have added cyanuric acid, it should show up in a test. The acid will stay in the pool permanently until it is drained. Take a sample of water to a retail pool store and request that they test for it. Advise them how much acid you have put in the water, and they should be able to advise you further on the issue.

Answer 4

Make sure your test strips are good, and have your water tested at your local pool store to confirm your readings.

Answer 5

Yes, you need cyanuric acid in a salt water pool. It will preserve your chlorine.