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Thread: Calcium Hardness Results... Should I be alarmed

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    Join Date
    Jan 2012
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    Calcium Hardness Results... Should I be alarmed

    Tested my pool water today and pool chemistry was: FC 5, PH 7.5, TA 80, CYA 70, CH 800., water temp 90. Pool water seems to look good. Was in the process of debating whether or not to add borates to 30-50 ppm to control ph drift due to SWG. My wife is concerned about health hazards. If I decide to proceed with adding borate I was going to increase to 30 ppm. Outdoor Pool is in direct sunlight almost all day.
    12,000 Gallon IG Saltwater, Blue Quartz/Glass Bead Plaster, Pentair Quad 80 Cart Filter, A&A Infloor Cleaning System, Pentair IC60 SWG, EASY Touch Control Panel with 4Button Wireless Remote, Pentair Inteliflo VS, Pentair Ultra-Temp 120 Heat Pump, FLOWVIS Check Valve & Flow Meter 2"

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    Re: Calcium Hardness Results... Should I be alarmed

    What is the CH of your fill water?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad pooldv's Avatar
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    Re: Calcium Hardness Results... Should I be alarmed

    You can let your TA drop as low as 50 to see if that will stabilize PH first. Keep adding acid to lower Ph and TA will drop.

    I am a fan of borates, more here, Borates - Why and How
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    Re: Calcium Hardness Results... Should I be alarmed

    CH of my fill water is 300
    12,000 Gallon IG Saltwater, Blue Quartz/Glass Bead Plaster, Pentair Quad 80 Cart Filter, A&A Infloor Cleaning System, Pentair IC60 SWG, EASY Touch Control Panel with 4Button Wireless Remote, Pentair Inteliflo VS, Pentair Ultra-Temp 120 Heat Pump, FLOWVIS Check Valve & Flow Meter 2"

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