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Thread: Any issues with 1 and 1\2 inch pipe?

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    Any issues with 1 and 1\2 inch pipe?

    Getting new 16x32 ig vinyl lined pool in may. My pb is using 1and1/2 inch piping. I see alot on here have 2". Should I be concerned?

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    Mod Squad jblizzle's Avatar
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    Re: Any issues with 1 and 1\2 inch pipe?

    Depends. If you only have a single suction line and a single return line, it would be better to at least have the suction line be 2". If you have 2 suction lines (skimmer and floor) back to the equipment, then having both be 1.5" would likely be fine.

    It can certainly lower the head loss and increase flow rate by using larger pipe on the pad where at the twists and turns happen.

    It really should not be that much of a price difference to use the larger pipe.

    BTW, my pool built in the 70s only had a single 1.5" suction line and a single 1.5" return line and it worked fine even with a large pump.
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    Re: Any issues with 1 and 1\2 inch pipe?

    2 skimmers on top, one on bottom in deep end. And I believe 4 jets.

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    Re: Any issues with 1 and 1\2 inch pipe?

    Inch anda half is ok but would recommend two inch. About the only thing we plumb with inch and a half is deck jet loop and pressure side auto vac. All returns main drains and skimmers are 2".
    Over 30 years in the pool business
    We build vinyl, fiberglass, stainless steel pools
    Certified in Hydraulics

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