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Thread: Learning the hard way, need advise.

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    Learning the hard way, need advise.

    I am new to this site and I am learning about pool care the hard way. After CYA levels reached 110 I started reading online and found TFP website with lots of helpful information and advise. I rented a sump pump and am currently draining the pool for to reduce the CYA level before I can begin to balance the pool. The Pool School calculator estimated that I would need to drain 64% of the water. We live in Houston, TX so I am concerned about draining too much water at a time. It has been quite hot here (97 degrees) with very little rain. I drained roughly 30% of the water on the first drain and am now refilling the pool. Realistically, how much water can I safely drain at a time given we live in Houston, TX?

    Test Results from Pool Store:
    FC 0.2
    TC 0.2
    CC 0
    pH 7.8
    Hardness 480
    Alkalinity 120
    CYA 110
    Houston, Texas - IG 22000 gallon, Pebble, Jandy PlusHP 2.0 HP Pump, Jandy CV460 Cartridge Filter, chlorine pool with UltraPure UV ozone generator

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    Isaac-1's Avatar
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    May 2010
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    Re: Learning the hard way, need advise.

    I would have to ask what part of Houston, the water table is likely to be a bit different in Seabrook vs The Woodlands, having said that 30% is usually safe in most location, and since your already on the way to refilling, you may want to stick with that a second time round if needed. (retest when refilled to get a better idea)
    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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    pwrstrk's Avatar
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    Aug 2012
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    Elverson Pa.
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    Re: Learning the hard way, need advise.

    Welcome to TFP.

    you can do it in thirds. The pool store test could be wrong with the CYA test. It could even be higher.




    Jeff
    24'x54" AG Morada RTR (by wilbar) 13'500 gal. Hayward Powerflo Matrix 1hp 2 speed. Hayward Perflex EC65 DE filter.

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    Join Date
    Feb 2008
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    Denton, TX
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    Re: Learning the hard way, need advise.

    I would stick to 30%. It's safe and not likely to turn as many heads if you are on water restrictions.

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    Re: Learning the hard way, need advise.

    Quote Originally Posted by Isaac-1
    I would have to ask what part of Houston, the water table is likely to be a bit different in Seabrook vs The Woodlands, having said that 30% is usually safe in most location, and since your already on the way to refilling, you may want to stick with that a second time round if needed. (retest when refilled to get a better idea)
    We are in Jersey Village.
    Houston, Texas - IG 22000 gallon, Pebble, Jandy PlusHP 2.0 HP Pump, Jandy CV460 Cartridge Filter, chlorine pool with UltraPure UV ozone generator

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    Join Date
    Jan 2013
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    Houston, TX
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    1,079

    Re: Learning the hard way, need advise.

    Given the lack of water in White Oak bayou on my bike ride this morning you should be able to drain to the bottom without issue. That said 30%-50% is completely safe unless you are right next to jersey lake or some other small body of water.

    Chris ... in Garden Oaks.
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
    One cannot follow Islam and Christianity at the same time, nor can one follow pool store methods and TFP at the same time.
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