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Thread: unorthodox AGpool closing - open to suggestions

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    mariane's Avatar
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    unorthodox AGpool closing - open to suggestions

    Background info: About a week ago, due to my carelessness, the water level went below the skimmer level and the pump went dry. We decided to keep the pool open for the hot weather this week and circulate it with a sump pump instead of refill with 100's of gallons for a few days and then dump the water to winterized levels. Since the water level is so low, we cannot use the pump for circulation and cannot vacuum using the pump.
    We are thinking of hooking the vacuum line up to the pump and vacuuming to waste and at the same time lowering the water level for winterizing.
    First we need to circulate the water with closing chemicals and thought we could put a pool hose line at the bottom of the deep end, prime the pump and let it circulate like that for awhile till the water temps drop below 60 and then winterize the pool. We will be putting the winter cover on to keep out the debris while circulating until the temps drop.
    Any thoughts? Have we forgotten/not taken into account something important?
    Thanks everyone.
    16 x 28 Doughboy Mystic Garden AGP with 7' deep end (used expandable vinyl liner) ~11,800 gals. Deep end main drain. Thru-the-wall skimmer, one return at deep end. Media Master 150# sand filter. Doughboy PowerPak II pump, 1 hp. Pentair MinimaxCH 150m natural gas heater. Polaris 65 when it feels like working . TF-100 test kit. No longer 'pool stored' 5 years and counting. In sunny but fickle metro-Detroit.

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    Mod Squad Bama Rambler's Avatar
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    Re: unorthodox AGpool closing - open to suggestions

    You should be able to use the vacuum hose to circulate the water. Keep a check on the pH if the return is above the water as the aeration might cause it to rise.

    By the way, what "Closing Chemicals" do you use? Bleach is all I ever use.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    mariane's Avatar
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    Re: unorthodox AGpool closing - open to suggestions

    Thanks Dave.
    I will close with bleach and Polyquat. This year I was going to follow TFP guidelines for closing and not the pool store's (they have you balance the TC at 1-3, then add algaecide.) but with this issue it won't be as easy. BTW we always opened to an algae filled pool in the spring and didn't understand why. I think it's because the pool store instructions DO NOT have you shock the pool first. CYA is 50. FC was 9, CC 0 this morning but the water is looking a little "dull" since none of it is being filtered. Also our pH, tested this morning is 7.2 and the return is still below the water. I was going to raise it up to 7.6 with stuff I have. Maybe I should just direct the return so it breaks the water and then I won't have to "add" anything to get the pH up.
    16 x 28 Doughboy Mystic Garden AGP with 7' deep end (used expandable vinyl liner) ~11,800 gals. Deep end main drain. Thru-the-wall skimmer, one return at deep end. Media Master 150# sand filter. Doughboy PowerPak II pump, 1 hp. Pentair MinimaxCH 150m natural gas heater. Polaris 65 when it feels like working . TF-100 test kit. No longer 'pool stored' 5 years and counting. In sunny but fickle metro-Detroit.

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    Mod Squad Bama Rambler's Avatar
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    Re: unorthodox AGpool closing - open to suggestions

    Get that vacuum hose working and raise the FC to SLAM level and let it circulate for a day. Since it hasn't been circulating for a while, I'd run an OCLT tonight just to make sure there's nothing growing in there, and then cover it as you suggested.

    Bleach is good and understand your apprehension about the algae, so the polyquat is some insurance, and that's fine.

    I'd just aim the eyeball up and let it run. Don't worry about adjusting the pH right now.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    mariane's Avatar
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    Re: unorthodox AGpool closing - open to suggestions

    Thanks Dave. It all worked great, no algae even with not circulating well. Passed OCLT and have finally covered the pool. Sorry to see the swimming season over in Michigan.
    Can't wait till next year!
    16 x 28 Doughboy Mystic Garden AGP with 7' deep end (used expandable vinyl liner) ~11,800 gals. Deep end main drain. Thru-the-wall skimmer, one return at deep end. Media Master 150# sand filter. Doughboy PowerPak II pump, 1 hp. Pentair MinimaxCH 150m natural gas heater. Polaris 65 when it feels like working . TF-100 test kit. No longer 'pool stored' 5 years and counting. In sunny but fickle metro-Detroit.

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