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Thread: water coming out of return on waste mode - sand filter

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    water coming out of return on waste mode - sand filter

    It's been a while since I've been on the boards! After opening our pool for the summer all has been well until 2 weeks ago. We have almost been in our new house for a year so we're still learning....We replaced our old pump with a new one (pentair whisperflo) which works awesome but that has created problems with our pump. I believe my husband did not place the valve back on the filter correctly after installing the new pump but I need help with troubleshooting the problem. Last night we had to vacuum to waste, while doing this, water was coming out of the pump (Back wash line?) as usual. BUT in addition to that, water was also coming out the return back into the pool. I don't usually vacuum, my husband does it. So I'm trying to figure out if the valve is on the pump wrong? I think this is the problem but not positive...Any help or suggestions will be helpful as we are still newbies. I would love to get a DE filter if we can't get the problem solved because even after replacing the sand in this filter last year, I still don't think it filters very well.

    I've tried to attach a picture of our filter but not sure if I got it...Here's a link, this is an old pic, we replaced the valve last year.

    https://flic.kr/p/f4xwb3
    Attached Images Attached Images
    Cecilia
    20,000 gallon gunite in-ground pool
    Pentair sand filter
    Pentair 320 automatic chlorinator
    Pentair whisperflo 1hp

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    JasonLion's Avatar
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    Re: water coming out of return on waste mode - sand filter

    This is probably a problem with the spider gasket inside the multi-position main valve.
    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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    Kiss4aFrog's Avatar
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    Re: water coming out of return on waste mode - sand filter

    The "valve" is on the top of the filter. The new motor is attached to the pump that pumps water up to the multiport valve and into the filter. I think you're confusing the terms.

    I also think you might have a problem with the spider gasket under that multiport valve. You just need to order the one to fit your valve and then unscrew the six bolts that hold the top of the valve down and there is the gasket !!
    http://www.youtube.com/watch?v=PNyQZEhwdoE
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
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    Re: water coming out of return on waste mode - sand filter

    Thanks, I think I know what you're talking about. It looks like a pie cut up? I'll have my husband check it out or talk him into a DE filter.
    Cecilia
    20,000 gallon gunite in-ground pool
    Pentair sand filter
    Pentair 320 automatic chlorinator
    Pentair whisperflo 1hp

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    Kiss4aFrog's Avatar
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    Re: water coming out of return on waste mode - sand filter

    It shows one in the video.
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, become a TFP Supporter!

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