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  • Recommended Levels

    Vinyl with Bleach
    FC 3-7 (See chart)
    pH 7.5-7.8
    TA 70-90+
    CH 0-350 (Don't add)
    CYA 30-50
    with SWG
    FC 3-5 (See chart)
    pH 7.5-7.8
    TA 60-80
    CH 0-300 (Don't add)
    CYA 70-80
    Plaster with Bleach
    FC 3-7 (See chart)
    pH 7.5-7.8
    TA 70-90+
    CH 250-350
    CYA 30-50
    with SWG
    FC 3-5 (See chart)
    pH 7.5-7.8
    TA 60-80
    CH 250-350
    CYA 70-80
    Fiberglass with Bleach
    FC 3-7 (See chart)
    pH 7.5-7.8
    TA 70-90+
    CH 220-320
    CYA 30-50
    with SWG
    FC 3-5 (See chart)
    pH 7.5-7.8
    TA 60-80
    CH 220-320
    CYA 70-80

    These levels are designed for outdoor residential pools chlorinating with bleach or a SWG, and will need adjustments when used in other situations. Liquid chlorine is the same as bleach, and cal-hypo users can also use the bleach recommendations as long as you monitor your CH level.

    For example, if you are using trichlor tablets for chlorine, follow the above recommendations but have TA around 100-150 and be sure it doesn't fall below 100.

    If you have an indoor pool, high TA or high CH fill water, large amounts of aeration (negative edge), lots of direct sunlight, or fresh plaster you should expect to need some adjustments to these recommendations. For advice on what would be ideal for your pool please ask on the forum.

    TroubleFreePool.com 2014