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    CYA reducer

    Hi everybody, thanks for your information and guidance. My neighbor's pool still testing at 100 whilst after draining and replacing approximately 50% of my water, my CYA is at 40! Thanks again, Ed
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    CYA reducer

    Does anyone have experience or information regarding a product Bio-Active used to reduce Cyanuric Acid levels without exchanging pool water? My neighbor tried it and says it seemed to work. The active ingredients are Dextrose and Active microbial cultures. Thanks
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    Long time pool owner, first time TFP!

    Confirmed my worst fears regarding wasting/draining...oh well! Thanks for tip on Walmart pool shock, heading there momentarily...
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    Long time pool owner, first time TFP!

    Also, how much of the pool water should I waste/drain lower CYA from 80 to proper level of 40 for a 30,000 gal regular pool? (non salt)
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    Long time pool owner, first time TFP!

    Hi to the TFP community! :cool::handwave: We had our pool installed 18 years ago and just found this site! Never heard anything about CYA levels from multiple pool stores we’ve used over the years. Draining the pool right now because CYA is at 80. After adding city well water back in, I plan to...