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Thread: question about pool calculator and effects of adding chems

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    question about pool calculator and effects of adding chems

    If I put in the pool calculator that I have a 1000 gallon pool and have a "now" CYA of 20 and a "target" CYA of 40, I read the calculator to tell me to add 2.7 ounces by weight of dichlor.

    If I go down to the "effects of adding chemicals" field, if I enter 2.7 ounces of dichlor, it tells me it will raise CYA by 10. Seems like it should day it will raise CYA by 20. What am I doing wrong here?

    Thanks for any help.
    POOL: Intex ultra new in 2014 (32 x 16 x 52) (seasonal; on concrete pad covered with 1.5" extruded or whatever foam insulation sheets - ugly, but comfy); added a through-wall skimmer; I add salt for feel. EQUIPMENT: Pentair SuperFlo pump (1HP, 2SPD); Pentair cartridge filter (200 sq. ft); Pentair MasterTemp natural gas heater (400,000 btu) Climate/Location: Eastern Nebraska

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    Re: question about pool calculator and effects of adding chems

    Quote Originally Posted by crek31
    If I put in the pool calculator that I have a 1000 gallon pool and have a "now" CYA of 20 and a "target" CYA of 40, I read the calculator to tell me to add 2.7 ounces by weight of dichlor.
    Actually, that is 2.7 ounces by weight of stabilizer (cyanuric acid) NOT dichlor.

    If I go down to the "effects of adding chemicals" field, if I enter 2.7 ounces of dichlor, it tells me it will raise CYA by 10. Seems like it should day it will raise CYA by 20. What am I doing wrong here?

    Thanks for any help.
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    Re: question about pool calculator and effects of adding chems

    Got it. Thanks.
    POOL: Intex ultra new in 2014 (32 x 16 x 52) (seasonal; on concrete pad covered with 1.5" extruded or whatever foam insulation sheets - ugly, but comfy); added a through-wall skimmer; I add salt for feel. EQUIPMENT: Pentair SuperFlo pump (1HP, 2SPD); Pentair cartridge filter (200 sq. ft); Pentair MasterTemp natural gas heater (400,000 btu) Climate/Location: Eastern Nebraska

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