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Thread: Quick question about CH

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    smforte's Avatar
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    Quick question about CH

    Hy Guys,
    I have a vinyl pool. I've read here not to worry about the CH but Pool Calculator suggest I add 383 oz of calcium chloride. Is this necessary w a vinyl pool?

    FC 7.5
    CC 0
    PH 7.6
    TA 100
    CH 150
    CYA 55 and falling

    and, how do my numbers look?
    Montgomery, AL
    27000 16 x 36 IG, Vinyl, Grecian, Hayward Sand filter, 1 HP Pentair whisperflo motor, Aqua Genie filter not by choice, no extra jets, Dolphin s300i robotic cleaner,Taylor K 2006 test kit, speed-stir which I couldn't live without!

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    Mod Squad jblizzle's Avatar
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    Re: Quick question about CH

    PoolMath (or the old Pool Calculator) only tell you what to add based on what YOU set as the Now and the Target values. If it said that you should add CH, it is because you put a Target CH value in that was greater than your Now CH value.

    You do not need to worry about CH with a vinyl liner. Everything else looks fine.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    smforte's Avatar
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    Re: Quick question about CH

    Awesome! I keep thinking the column on the right is the recommended level and that's what I need to be at. I love this forum!
    Montgomery, AL
    27000 16 x 36 IG, Vinyl, Grecian, Hayward Sand filter, 1 HP Pentair whisperflo motor, Aqua Genie filter not by choice, no extra jets, Dolphin s300i robotic cleaner,Taylor K 2006 test kit, speed-stir which I couldn't live without!

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    Isaac-1's Avatar
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    Re: Quick question about CH

    have you set the pool math targets for a vinyl pool and using TFP method?

    ooops looks like we may have a bug in pool math for CH levels in vinyl pools
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Mod Squad jblizzle's Avatar
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    Re: Quick question about CH

    Quote Originally Posted by Isaac-1 View Post
    have you set the pool math targets for a vinyl pool and using TFP method?

    ooops looks like we may have a bug in pool math for CH levels in vinyl pools
    What bug? It says 50-300 which is reasonable (for TFP recommendations)
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Isaac-1's Avatar
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    Re: Quick question about CH

    Yes but auto fills in 260 when vinyl pool is selected for pool type
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

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