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Thread: Installing new pump

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    Join Date
    Jul 2011
    Location
    Brookfield, WI
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    130

    Installing new pump

    Greetings,

    we have received the new pump and are now in the installation process. However, we ran into a situation concerning the pipes and we wonder if you have some advice to help us out of this pickle.

    The old pump was a Northstar and the pipes coming from the pool are 1-1/2". The new pump supports 2" pipe but we gt a reducer for that. The problem is on the existing pipes and since it is way too difficult to explain, I attaching photos. Certainly we hope not to have to dig the whole thing out and start again....

    IMG_0501.jpgIMG_0499.jpgIMG_0500.jpgIMG_0502.jpg

    I hope the photos show. Let me know what questions you may have.

    Thanks.

    Miriam
    20 x 44 in-ground vinyl
    Hayward Pro-Series High-rate sand filter (S310T)
    Nature2 Zodiac chlorinator

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    Mod Squad woodyp's Avatar
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    Apr 2010
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    East Texas
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    Re: Installing new pump

    Are you saying the threading on the half union doesn't match up, or what?
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    Jul 2011
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    Brookfield, WI
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    Re: Installing new pump

    Quote Originally Posted by woodyp View Post
    Are you saying the threading on the half union doesn't match up, or what?
    We cannot use the union from the Northstar on the Pentair pump. And the union from Northstar is glued to the pipe and there is no exposed pipe to put new fittings on. There is only coupling.
    20 x 44 in-ground vinyl
    Hayward Pro-Series High-rate sand filter (S310T)
    Nature2 Zodiac chlorinator

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    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    Location
    East Texas
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    Re: Installing new pump

    Sounds like you're going to have to cut and replace some existing pipe and provide a new half union on that side.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  5. Back To Top    #5

    Join Date
    Jul 2011
    Location
    Brookfield, WI
    Posts
    130

    Re: Installing new pump

    Quote Originally Posted by woodyp View Post
    Sounds like you're going to have to cut and replace some existing pipe and provide a new half union on that side.
    As we inspect the existing lines and valves, etc, we see that there is nothing the is screwed together. all glued. I am afraid to think that we may need to replace the whole thing.
    20 x 44 in-ground vinyl
    Hayward Pro-Series High-rate sand filter (S310T)
    Nature2 Zodiac chlorinator

  6. Back To Top    #6

    Join Date
    Oct 2015
    Location
    Katy/Texas
    Posts
    411

    Re: Installing new pump

    I had a similar problem when I installed a new pump. Fortunately I own a lathe and was able to turn a pvc sleeve, inside coupling, to modify the piping. I don't know if you can buy something like that or perhaps you know someone who can make one for you.
    In ground, 14,000 gallon, white plaster, unheated, stone waterfall, DE Filter, Rainbow 320 Cl, Polaris 3900, FloVis flow meter, F100 test kit, Circupool RJ30+ SWG, Circupool VJ1/Speck Badu EcoM3V variable speed pump.

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