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Thread: Does aeration impact CYA as well as pH?

  1. Back To Top    #1

    Join Date
    May 2016
    Cincinnati, OH

    Does aeration impact CYA as well as pH?

    Made an aerator based on examples in old posts here. Finally seeing some pH increase! Have added soda ash and borax with no change in pH, just alkalinity. So aeration does work. I did detect a small loss in CYA at the same time. I am assuming this is merely variation due to the test method but thought i would ask the forum. i have been getting 50 ppm CYA for several days before the 40 ppm today. And yes, i know i dont normally need to measure it that often, still in newbie mode to TFP method. Thanks

    The other reason i ask is because information i received from various pool stores (i know, i know, if i heard it in a pool store it MUST be true. ha ha) trying to talk me into using tabs of trichlor that also contain cya say not to worry about increasing cya because cya is lost by people activity in the pool. hence my thought on aeration effect.
    30000 gal inground vinyl liner;sand filter w/glass media, nuvo uv, TF-100 test kit; 25 years on Baquacil, switching to TFP chlorine in 2016

  2. Back To Top    #2
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Columbia, SC

    Re: Does aeration impact CYA as well as pH?

    No, they are lying or are misinformed. You decide.

    Stay away from tabs if CYA is an issue.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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