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Thread: Pentair Installation question

  1. Back To Top    #1

    Join Date
    Mar 2010
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    Goldsboro, N.C.
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    Pentair Installation question

    I just purchased a Pentair IC40. I know the couplings on the cell are 2". However, my pipe is 1-1/2. Will putting a 1-1/2 to 2 inch adapter into the inlet of the cell and reducing it back down coming out of the cell cause any problems with flow(or any other problems)?

    Also, it says in the manual that the cell should installed on a straight run of pipe 12-18 inches. I have a straight run 18 inches, but the cell will cut out most of that. My question is; does the cell count in the 12-18 inch straight run or is that before the cell?

    If the cell does not count, i am going to have to reconfigure my piping, unless it is not really a big deal to begin with.

    Thanks
    25,000 gal. I/G Vinyl Liner Pool; Pentair IC40 SWCG; 3/4 hp Hayward Pump with 244t Hayward Sand Filter

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    Join Date
    May 2007
    Location
    South Central NJ
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    3,192

    Re: Pentair Installation question

    The reducer bushings to go from 2" down to 1.5" should have come with it. If it didn't, pick them up in Lowes. Use Schedule 40 fittings pressure rated fittings, not the shorter one meant for drainage, wast and venting.

    Scott
    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  3. Back To Top    #3
    JasonLion's Avatar
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    May 2007
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    Re: Pentair Installation question

    The new manual says that it is best if you have 12" to 18" of straight pipe before the SWG. Last years manual didn't mention that. Ideally, you want 12" to 18" of 2" pipe before the cell, since the change in pipe diameter might in theory disrupt the flow enough to give the flow sensor a problem.

    It isn't clear how important that really is. They say "for best flow sensing", rather than anything like "you must have".
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  4. Back To Top    #4

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    Re: Pentair Installation question

    Thanks.
    I'm just trying to figure out if i need to re-route my piping to make a 18 inch run before the cell.
    If i decide to extend the pipe, should i do it in 2 inch and then reduce it back at the point i tie it back in to my current configuration or just add the 2 inch adapter right before the cell and reduce it back right after the cell?
    25,000 gal. I/G Vinyl Liner Pool; Pentair IC40 SWCG; 3/4 hp Hayward Pump with 244t Hayward Sand Filter

  5. Back To Top    #5
    JasonLion's Avatar
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    May 2007
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    Re: Pentair Installation question

    You want 2" pipe for 12" to 18" before the cell, but it doesn't matter either way anywhere else.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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