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Thread: Is there better wisdom to draining a green swamp?

  1. Back To Top    #1

    Join Date
    May 2014
    Burlington, NC

    Is there better wisdom to draining a green swamp?

    I am just curious for future years if it would be wiser to drain halfway a murky, green pool at start up than to try to clean up the water that is in there? It takes so long to clean a frog pond and I still wonder even for this year if it would clear any quicker if I drain it halfway now. I have been SLAMing for over a week and seeing some improvement but it is far from clearing. Can not see the shallow end yet even though it is a sea green/bluish color now. Also, we have a sand filter which apparently is the slowest to clean up. Would there be economic sense to change to a DE or cartridge filter system? Or do I just keep planning for 3-4 weeks of clean up in the spring?

    Thanks for any opinions and/or advice on this.
    18,000 gallon IG vinyl
    Hayward S220T sand filter, replaced sand 2013
    Sta-Rite pump, 1HP?
    New liner, 5/12; pool built in 1981;

  2. Back To Top    #2
    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: Is there better wisdom to draining a green swamp?

    A better solution is to not allow it to become a swamp. You should close a pool right before freezing weather with sufficient chlorine and then open right after the freezing weather. If you wait until the water warms up, it is too late and algae will take hold.

    But does the water ever freeze where you are? If not, you might be better off leaving the pool open all year and just draining the equipment during the really cold weather when there is a chance of the plumbing freezing.
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
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  3. Back To Top    #3
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: Is there better wisdom to draining a green swamp?

    I looked up the average low temp and it doesn't look like it ever stays below freezing. Warmer than here actually. You could keep your pool open year round. Mine is open year round, pump runs a couple hours a day, I add bleach every couple of weeks to keep FC at 8-10 ppm FC so I can yest PH.
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  4. Back To Top    #4
    Isaac-1's Avatar
    Join Date
    May 2010
    SW Louisiana

    Re: Is there better wisdom to draining a green swamp?

    It varies from pool to pool, however with a vinyl liner pool there are substantial risks to liner lifting or failing if you ever allow less than about a foot of water in the shallow end, so it is sort of moot in your case.
    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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  5. Back To Top    #5

    Join Date
    Aug 2014
    Northern IL

    Re: Is there better wisdom to draining a green swamp?

    If you expect a freeze, you could just run the pump overnight to keep water flowing in the lines to protect them from freezing. Easy.

    As to your question about draining now, not sure. Do you have any pics of your swamp?

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