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Thread: draining pool

  1. Back To Top    #1

    Join Date
    Oct 2009
    Location
    Southern CA
    Posts
    54

    draining pool

    May be a stupid question: If I plan to drain the pool in a few days, can I stop adding any more chemicals? been dumping in tons of acid and not able to bring down TA for any significant amount of time. also has low grade algae.

    FC 5-9
    pH rises quickly to 7.8, been unsuccessfully trying to keep it near 7.2
    TA 70-90, not been able to bring down to 60
    CH 680 +
    CYA 60
    salt 3000 (non salt water pool)

    Thanks.
    Irregularly shaped IG pool with aggregates of squares and rectangles, spa overflows to pool
    21K gallon, Pebble tec, 450 sq ft, 125 GPM cartridge filter, 1hp pump, 1.5hp booster pump, Jandy heater,
    2 skimmers, 2 main drains, Hayward Navigator automatic vacuum connected to one of the skimmers

  2. Back To Top    #2

    Re: draining pool

    1. Why are you draining your pool? 2. Why would you add chemicals to a pool you are completely draining? BTW, completely draining a pool is almost never a good idea.
    10,000 gallon
    Viking Freeform Fiberglass Inground Pool. FNS Plus DE Filter Pentair Challenger .75hp pump

    NC KANSAS44

  3. Back To Top    #3

    Join Date
    Oct 2009
    Location
    Southern CA
    Posts
    54

    Re: draining pool

    it's been hard to keep the pool balanced: high TA and pH despite pouring in tons of acid and aerating; not able to maintain a low enough TA/pH to keep CSI balanced; high CH, high salt and frequent low grade algae are other factors.

    Question is if I can let the pool go for A FEW DAYS if it's at least partially drained. Is it easier to deal with a clean startup pool, but waste chemicals now, or is it better to just shock it later when water is refilled. Sorry about the unclarity.
    Irregularly shaped IG pool with aggregates of squares and rectangles, spa overflows to pool
    21K gallon, Pebble tec, 450 sq ft, 125 GPM cartridge filter, 1hp pump, 1.5hp booster pump, Jandy heater,
    2 skimmers, 2 main drains, Hayward Navigator automatic vacuum connected to one of the skimmers

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: draining pool

    Do you know what your fill water TA and CH levels are?
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  5. Back To Top    #5

    Join Date
    Oct 2009
    Location
    Southern CA
    Posts
    54

    Re: draining pool

    fill water CH 80-90 today, 125 last month
    fill water TA 150-160
    fill water pH >8.2 (bright red)
    do not have salt strip to test fill water. will get it if it's important.

    pool last drained 2.5 years ago, by half, due to high CYA, CH.
    Had very little rain in the winter for dilution.

    best option?
    Irregularly shaped IG pool with aggregates of squares and rectangles, spa overflows to pool
    21K gallon, Pebble tec, 450 sq ft, 125 GPM cartridge filter, 1hp pump, 1.5hp booster pump, Jandy heater,
    2 skimmers, 2 main drains, Hayward Navigator automatic vacuum connected to one of the skimmers

  6. Back To Top    #6

    Join Date
    Oct 2009
    Location
    Southern CA
    Posts
    54

    Re: draining pool

    Do you recommend partial drain or complete drain?
    Irregularly shaped IG pool with aggregates of squares and rectangles, spa overflows to pool
    21K gallon, Pebble tec, 450 sq ft, 125 GPM cartridge filter, 1hp pump, 1.5hp booster pump, Jandy heater,
    2 skimmers, 2 main drains, Hayward Navigator automatic vacuum connected to one of the skimmers

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