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Thread: Hi pressure,Low pressure

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    Hi pressure,Low pressure

    Hi Everyone

    I recently changed the sand in my filter because I was getting no pressure on my return jets in the pool and the pressure on the filter itself was 30 psi. When I change the sand, the psi on the filter was about 12 psi with 8 psi on the return. Now it is back up to 30 psi on the filter with no pressure once again on the return. Has anyone had this problem??

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    Mod Squad JohnT's Avatar
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    Re: Hi pressure,Low pressure

    Welcome to TFP!

    Have you backwashed the filter?
    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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    Re: Hi pressure,Low pressure

    I've backwashed the filter, rinsed, even vacummed to waste still no change

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    JasonLion's Avatar
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    Re: Hi pressure,Low pressure

    What does your water look like?
    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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    Re: Hi pressure,Low pressure

    its green now

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    Re: Hi pressure,Low pressure

    This situation has been on going for a month

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    Mod Squad Bama Rambler's Avatar
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    Re: Hi pressure,Low pressure

    Sounds like there is a lot of algae you're trying to filter out. Are you shocking the pool?
    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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    Mod Squad JohnT's Avatar
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    Re: Hi pressure,Low pressure

    Quote Originally Posted by NolaBigDawg
    Hi Everyone

    I recently changed the sand in my filter because I was getting no pressure on my return jets in the pool and the pressure on the filter itself was 30 psi. When I change the sand, the psi on the filter was about 12 psi with 8 psi on the return. Now it is back up to 30 psi on the filter with no pressure once again on the return. Has anyone had this problem??
    What do you mean by "12 psi with 8 psi on the return"? Do you have more than one gauge? Do you backwash for at least 3-4 minutes? Have you tried operating the system with the filter set to recirculate to see if it is a filter issue or plumbing issue?
    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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    Re: Hi pressure,Low pressure

    I used five bags of shock, with no results

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