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Thread: Brand new pool-CYA to 30 in 6 weeks with tabs

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    Brand new pool-CYA to 30 in 6 weeks with tabs

    Great forum. New 29,000 gallon concrete pool opened for first time mid April. Found forum a week later after buying tons of tabs and dichlor. How fast can CYA possibly accumulate I think. Should be good with tabs for a couple years. Well, 6 weeks in, using only tabs and dichlor once for shock, CYA already at 30. No conditioner added whatsoever. Will bump up to around 50 and switch to bleach. Weird how pool guy "indoctinating" me to pool never mentioned CYA. It be well over 100 by August and I'd probably be loading up on algecides, etc. from pool store.

    Anyway, thanks to the moderators. This is a great forum, I've learned tons. My pool is currently sparkling and I look forward to keeping it that way.

    And oh yeah, Go Red Sox!
    29,000 gallon, concrete pool and spa, SE PA
    Jandy 2HP pump, Raypak 400 heater, Polaris 380

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    dmanb2b's Avatar
    Join Date
    Apr 2009

    Re: Brand new pool-CYA to 30 in 6 weeks with tabs

    Welcome to TFP

    As you have witnessed 30ppm/mo CYA on trichlor/dichlor is a pretty good rule of thumb. As long as you montior your levels and switch to'll be fine. The pool industry does not educate clients on CYA as it makes them more money in the long run
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

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    Join Date
    Apr 2011
    Lynchburg VA

    Re: Brand new pool-CYA to 30 in 6 weeks with tabs

    I remember looking at a pool store report I received before switching to BBB where it stated that an acceptable range to CYA was 50 to 300! Can you imagine the chlorine I would have to dump into a pool with a CYA of 300! BBB has been easy and my pool has never looked better! Testing daily is actually fun!
    18x36 Vinyl In-ground w/roman ends 27,400G, Hayward 3/4hp with 300# sand filter. Hayward heat pump heater

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