My name is John aka Real. I have a 18x34 ft above ground pool with Hayward D.E. filter, Howard Pump, Hayward Nutr-apure UV return, Frog Leap chlorinator. First season pool owner.
The frog leap chlorination uses chlorine that contains stabilizer (CYA). At high levels of CYA, it is difficult to maintain enough FC to sanitize the pool. Link-->FC/CYA Levels
The only way to reduce CYA is to replace water.
We recommend liquid chlorine and salt water chlorine generators.
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