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- CYA - Further Reading - Trouble Free Pool
CYA is a friend when used with the correct ratio to free chlorine Benefits to Using CYA in Pool Water Benefit one is the UV protection Benefit two is the flattened pH dependency With CYA 30, the HOCl concentration drops by 15% between pH 7 5 and 8 0 Benefit three is the chlorine reservoir All that "useless" chlorine bound to CYA stays in
- The Free Chlorine and Cyanuric Acid Relationship
Maintaining proper levels of FC according to CYA keeps your water safe and clear without using ineffective, expensive chemicals like algaecides The pool, equipment, and people are safe with FC levels up to and including SLAM level FC for your CYA CYA typically degrades 5-10PPM in the summer, so ensure you test and replace CYA at least monthly
- CYA Chlorine Relationship - Further Reading - Trouble Free Pool
This means that a pool with 20 ppm CYA and 1 ppm FC has the same HOCl concentration as a pool with 200 ppm CYA and 10 ppm FC In fact, a pool with a 2 5:1 CYA:FC concentration has only 1 5th the active chlorine (HOCl) compared to a pool within the CDC's guidance for safe and ideal levels
- How did the CYA levels get so high in my pool - Trouble Free Pool
CYA increases over time in a pool if you are using stabilized chlorine products, Trichlor pucks tabs (or powdered "shock") or Dichlor granular (sometimes also sold as "shock") For every 10 ppm Free Chlorine (FC) added by Trichlor, it also increases Cyanuric Acid (CYA) by 6 ppm For every 10 ppm FC added by Dichlor, it also increases CYA by 9 ppm
- Recommended CYA Level For Sunny Pools | Trouble Free Pool
So when I doubled the CYA level in the pool, the extinction rate (i e CL loss per day) went down by more than half For example, at a CYA of 45 ppm, my average extinction rate was 50% with a FC level of 2 ppm so I lost about 1 ppm day At a CYA of 80 ppm, my average extinction rate was 10% with a FC level of 4 ppm so I lost about 0 4 ppm day
- CYA Testing - Further Reading - Trouble Free Pool
It can provide CYA measurements at 5, 10, and 15 ppm that the standard CYA tests cannot It also contains a dilution vial to dilute the sample 5 to 1 and test CYA from 100 to 500 ppm by dilution Measuring low levels of CYA can be useful for hot tubs that use it to buffer the chlorine harshness
- Chlorine CYA Chart - Trouble Free Pool
1) Without any CYA then chlorine breaks down very quickly in sunlight -- cut in half every 30 minutes in noontime sun 2) Without any CYA you are overdosing your pool with chlorine because you can't really control a small 0 1 ppm of Free Chlorine (FC) in your pool
- PoolMath - Trouble Free Pool
Calcite Saturation Index - requires pH, TA, CH, CYA, Temp, uses Borate, Salt Less than -0 6 is suggestive of problems for plaster, tile, stone, and pebble pools Greater than 0 6 is suggestive of problems for all pools Suggested FC Levels
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