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Thread: Mystery tube between pump outlet and pool return???

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    Mystery tube between pump outlet and pool return???

    Does anyone know why the pipe after the pump outlet (before the multiport valve) would be connected to the return with a small (0.25 inch dia.) tube (black tube in picture)??? I'm going to put in a SWG and want to make sure I can get rid of the tube...
    [attachment=0:18q5jfx7]setup_old.jpg[/attachment:18q5jfx7]
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    21K gal, IG vinyl, 1 HP Pentair SuperFlo pump, sand filter, Swimpure Plus SWG, Polaris 180? and PB4 booster pump

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    Isaac-1's Avatar
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    Re: Mystery tube between pump outlet and pool return???

    My guess is it is a bypass where a feeder tube was installed for a chlorine or acid feed system, like the Liquidator or similar
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Re: Mystery tube between pump outlet and pool return???

    Issac-1 is right. It was probably where a chlorinator used to go and instead of replacing the pipes with the holes drilled in them, they just ran a straight piece of chlorinator hose.
    24' round above ground, 13500 gallons, vinyl liner, 18" Sand Filter

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    Re: Mystery tube between pump outlet and pool return???

    Makes sense, thanks for letting me know. I'm going to get rid of the pipe with the hole in the return line to install a SWG. Is there a good way to plug the hole in the pipe between the pump and filter?
    21K gal, IG vinyl, 1 HP Pentair SuperFlo pump, sand filter, Swimpure Plus SWG, Polaris 180? and PB4 booster pump

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    Re: Mystery tube between pump outlet and pool return???

    There are several ways. You could drill and tap the hole, and put in a plug. You could cut the pipe and use a coupling. You could cut a coupling in half, and then in half again lengthwise to make a patch piece. Glue the patch piece over the hole. Use a clamp to hold the patch piece until the glue dries.

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    duraleigh's Avatar
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    Re: Mystery tube between pump outlet and pool return???

    VERY nice tips, JamesW.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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