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Thread: suction on pool vac?

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    suction on pool vac?

    27k gallon inground vinyl pool. I have been having trouble getting some sediments off the bottom of my pool. I have the old school vac head attached to the hose and pole setup and can't seem to get enought suction to suck up the sediment. I've been thinking of closing two drain lines in hopes of making the third have stronger suction so i can vacuum the crud up but have been hesitant thinking it might damage the pump. Any thoughts?
    12,500 Gal In Ground Plaster, Zodiac lm2-24 SWG, Cartridge Filter, Attached spa, Waterfall, Phoenix AZ

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    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    SW Indiana

    Re: suction on pool vac?

    It's normal to partially close the other lines to increase suction for vacuuming. As long as the pump basket stays nearly full, you'll be fine.
    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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    Join Date
    Jun 2007
    New Jersey

    Re: suction on pool vac?

    I have always closed all other drains. I have been doing this since I was 10 (I am 56 now) because my old man taught me that way. As long as your vac head rolls freely and you have a decent flow out the return (or waste pipe, if going to waste), you are fine, IMHO.
    Current: 28,000G 18'x36' I/G AnthonySylvan Plaster; Waterway 60 sq.ft. DE Filter; 1.0hp x 1.65 SF Two-Speed (B2982) WhisperFlo; 2004-Present
    Previous: 40,000G 20'x40' I/G Koven unlined WWII salvage 5/8" marine steel; Lomart Stainless Sand Filter; 3/4hp Hayward SuperPump; 1946-2003 (managed by me from about 1964)
    Ancient Taylor K-2000, upgraded with Taylor CH, TA, and FAS-DPD, and TFT CYA tests.

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