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High Cyanuric Acid Levels In Swimming Pools

Cyanuric Acid (CYA) is also known as a stabilizer and conditioner for your swimming pool. It is a chemical that is necessary to help retain chlorine in your swimming pool. However, as much as it is important, what happens when the levels get too high? To learn more about CYA and its relationship with chlorine, please CLICK HERE to read one of our previous blogs post on this subject.

When you are concerned about chlorine loss, one of the most common chemicals used is CYA. The conditioner protects the free chlorine from being destroyed by the ultraviolet rays of the sun. CYA 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, which in turn reduces the amount of chlorine needed to maintain proper sanitizer levels.  Because of this, Cyanuric Acid can help reduce the cost of maintaining a safe and clean swimming pool. Depending on whether or not you have a salt system, the normal ranges for CYA in your swimming pool is 30 to 50 parts per million (ppm). But, what happens when those levels are higher than 100 ppm?  If you didn’t click on the link above, please do because many answers can be found there.

Typically, if your CYA, Total Dissolved Solids (TDS), or Calcium Hardness levels are high which is extremely common for most residential or commercial swimming pool owners most pool professionals will recommend a drain and refill. At Pure Water Industries, we have a solution for all of them and a way to put superior water quality water back in your pool without draining it. We use Reverse Osmosis (RO) filtration which can lower those and many more. Just this past week we purified a commercial swimming pool that was struggling with high levels of CYA, TDS, and Calcium Hardness.

Initial Chemistry

Calcium Hardness – 680 ppm

Total Dissolved Solids – 4272 ppm

Cyanuric Acid – 100 ppm

After filtering this commercial swimming pool with RO filtration we were able to lower their initial chemistry to the following:

Ending Chemistry

Calcium Hardness – 140 ppm

Total Dissolved Solids – 972 ppm

Cyanuric Acid – 40 ppm

If you should have any questions in regards to RO filtration and how it is a much better solution to a drain and refill, please contact us today!