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Thread: Closing pool for the first time

  1. Back To Top    #1

    Join Date
    May 2007

    Closing pool for the first time

    I live in northern Ohio and I'm closing our 21' AG pool for the first time. Do I need to put some kind of air pillow in the water under the winter cover for ice expansion?
    My pool:
    10,400 gallon AG, 1hp 2 speed pump, 21" sand filter

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD
    You don't "have to" but it is recommended that you put an air pillow under the middle of the cover. Having support for the middle of the cover evens out the pressure on the walls, which helps to reduce the chance of colapse slightly. It also makes it simpler to get to the water and leaves that accumulate on the cover (pushes them away from the middle towards the edges).
    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

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