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Thread: system backwashes immediately thru skimmer when pump stops.

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    system backwashes immediately thru skimmer when pump stops.

    For the last month, my system has "burped" back thru the return line to the skimmer basket when the system turns the pump off, enough so that it flips the skimmer basket upside-down every time... there are no air leaks in the system that I have been able to find. Just rebuilt all connections in the chemical feeder system, all good there. Any suggestions?

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    Mod Squad JohnT's Avatar
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    Re: system backwashes immediately thru skimmer when pump sto

    Welcome to TFP!

    It's almost certainly air in the filter. Any issues with the skimmer weir hanging? Is the pump basket 100% full of water with no air in it?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Mod Squad Bama Rambler's Avatar
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    Re: system backwashes immediately thru skimmer when pump sto

    Once the pump is running, bleed all the air out of the filter and see if more accumulates. If it does you have a suction side air leak.
    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
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