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Thread: CYA Question

  1. Back To Top    #1

    Join Date
    Jul 2014

    CYA Question

    If my CYA is 35 (in the middle between 30 & 40. Do I use 30 or 40 for my Chlorine levels? Thanks
    5,700 gallon, Carribean Isle 15x52 Round Above Pool.
    Cartridge Filter.
    Installed Fall, 2014.
    North New Jersey
    Using the TF100 test

  2. Back To Top    #2
    mikemass's Avatar
    Join Date
    Jul 2013
    Northern Howell, NJ

    Re: CYA Question

    40. round up
    25 + year pool owner. Current pool (going on 11th year) - 38K gallon in ground Gunite/White Plaster, Spillover Spa, Hayward Cartridge Filter, Hayward 450k BTU NG Heater, Hayward Goldline Aqua Logic control with T-Cell-15 Salt Water Cell, Dolphin Explorer.
    You Need: Bleach, a A Test Kit & a Bookmark to "Pool School". Now what's your question?

  3. Back To Top    #3

    Join Date
    Aug 2014
    Northern IL

    Re: CYA Question

    40. The CYA scale is not linear as you can see from the gradation marks on the cylinder.

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