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Thread: Public Pool Flow & Turnover Problem

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  1. #1
    Join Date
    Jun 2011
    Location
    Augusta, GA
    Posts
    3

    Default Public Pool Flow & Turnover Problem

    [ Note to posters: this is a public pool. Very different rules apply! PoolDoc. ]

    I'm getting about 80 gpm. I'll never get to the 244 gpm required to turn my pool in 6 hours. I would, however, like to improve upon the 80 gpm.

    88,000 gallons, two 500 lb sand filters, 2 hp and 1.5 hp pump. Two 3 inch pipes return from the skimmers and bottom (1 pipe for each). Pipes drop to 1.5 inch before each pump. Each pump feeds a filter (1.5 inch pipes) and then the pipes combine again in a 3 inch junction.

    Each 1.5 inch pipe should theoretically give me 74 gpm. Filters are rated for "up to" 98 gpm. I should theoretically be able to achieve 140 without changing pipes or filters (I think).

    Before I spend the money, I am trying to figure out if larger motors on my pumps will give me extra flow. Are my assumptions above incorrect? Any thoughts?

    Russ
    Last edited by PoolDoc; 07-08-2011 at 10:32 AM. Reason: add commercial note
    88,000 gallons (chlorine) -- Two 500 lb sand filters, gunite/plaster,
    2 hp Hayward pump, 1.5 HP Pentair

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