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Thread: Initial fill - soft water or hard water?

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    Join Date
    Aug 2014

    Initial fill - soft water or hard water?

    We have a water softener and was wondering if we should use any soft water (perhaps a combination of hard and soft) in filling the pool. We have a TFP Test kit and our CH was 25 with soft water and 125 with hard water.

    Any other information I need to make a decision?

    p.s Our fill is scheduled for tomorrow.

    1200 Sq Ft 41,000 Gal. Gunite, JANDY SVRS VS pump, JANDY JXI 400,000 BTU, Polaris 280 w/ 3/4 BP, Rockwall and Grotto (w/6 jets and blower), 2 JANDY Lam Jets, 2 LED Bubblers, 5 Ledlights, AQUALINK P16 RS, 90% Quartz, SWF 185 GMP BP, SWF 125 BP, Levelor K1100 Autofill, AP Digital SWG, 2 skim and 5 returns, and mostly 3 inch piping

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Initial fill - soft water or hard water?

    Use the Hard water. At 125 ppm, it is actually quite soft compared to other areas of the region. You are fortunate to have it.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    NW Ohio

    Re: Initial fill - soft water or hard water?

    Wow, your hard water is about half as hard as mine.

    No need to use the soft water. Most water softeners are only able to treat a few hundred gallons before needing to regenerate. Trying to fill a pool with one can be a challenge to say the least.

    From my HTC One via Tapatalk
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

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