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Thread: Best way to replace plumbing for new pump?

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    Join Date
    Apr 2015

    Best way to replace plumbing for new pump?

    I just got a Pentair Intelliflo to replace my 3hp Hayward pump. I'm a bit confused about the best way to replumb the unit. I read in the Pentair manual that they want about 10" of straight feed coming into the pump but my Hayward has about 3" now, so I think I have to move the new unit from the old location a bit. So now I'm at the point where I have to basically replumb the intake and output lines. My question is should I mount both unions on the pump, and then run my 2" PVC lines to them --- Or should I run the lines just about to the right position, and then put the unions on and secure them to the pump? I would think that the first approach would give me a more stress free rig, but might be more difficult to accomplish.
    30k gallon pool w/spa. iAqualink IQ20-RS, Jandy All Button +Spa control, Pentair IntelliFloVS plus 1hp spa booster, Hayward Navigator poolvac.

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Best way to replace plumbing for new pump?

    Sorry no one has responded and yo may have already decided.

    I would put the unions on first and then build the PVC to them. I did mine like that and had no problems. As you know, it has to be careful work.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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