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Thread: Sand Dollar filter.

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    Join Date
    Jun 2008
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    Sand Dollar filter.

    My 22" Sand Dollar filter is constantly on 18 psi. I can backwash it for 10 minutes and once I switch it back to filter it is still at 18psi. Why would this be happening?
    24' AG, 52" wall ,resin with 1Hp pentair pump with sand dollar sand filter. Hayward aquatrol salt generator

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    Mod Squad JohnT's Avatar
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    Apr 2007
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    SW Indiana
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    Re: Sand Dollar filter.

    Quote Originally Posted by jeremydu
    My 22" Sand Dollar filter is constantly on 18 psi. I can backwash it for 10 minutes and once I switch it back to filter it is still at 18psi. Why would this be happening?
    Unless it has previously operated at a lower pressure, there's nothing wrong. Most pools are in that range for normal pressure.
    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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