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Thread: New Pool Basic Questions

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    Join Date
    Nov 2015
    Mt Vernon Oregon

    New Pool Basic Questions

    I am building an in ground pool in the philippines. Is it safe to assume that the standard piping size for main drains, skimmers, and returns is 1 1/2" ? Would a 1 HP circulation pump be adequate for a 25,000 gal pool ? Also, is there any thing wrong with using the main drain as the fill port ( with proper and according valving ) ?

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    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: New Pool Basic Questions

    1.5 inch pvc is fine. The 1 hp pump is fine as well.

    If I understand your question, you would like to fill using the main drain. I see no problem with that but it seems very unnecessary. Why not just fill over the side?
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Jun 2014
    Roseville, CA

    Re: New Pool Basic Questions

    I would advise against using the main drain to fill. It's a generally a bad idea. You may have to use extra plumbing gadgets per building code - anti siphon, etc. Anything hooked to the fresh water supply has to have safeguards to prevent contamination from non potable supplies.

    Just port it into the side with an auto fill device, or use a hose over the side.
    SWG: CircuPool SI30+Plus; Recommended Levels: Salt 3000-4000, 3500 is ideal;
    My Ideal Specs:
    FC 5; PH 7.5-7.8; TA 100; CH 350; CYA 75; = SI ~ 0.19
    14,000 gal, in ground, plaster, Cartridge filter
    TAYLOR K - 2006

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