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Thread: PVC Piping Repair

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    Jul 2013
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    PVC Piping Repair

    Hi all,

    Our self priming pump still won’t prime on it’s own. I have to manually prime it every day. After what seems like weeks of performing various problem solving tests that all of you “experts" from this forum have suggested (tons of thanks to everyone), we think we have finally found the areas of our air leak(s) on the suction side. * Fingers crossed! *

    Now, I am looking for suggestions on exactly how to repair the air leak(s) using this particular epoxy.
    Has anyone ever used JB Weld PlasticWeld Syringe or Water Weld Epoxy Putty PVC piping? I just ordered them and they should arrive in a few days. Does the area need to be prepped in any way?

    Thank you in advance for any advice / suggestions you can give.

    Suzanne
    Suzanne ~ Oval 12' x 24', IG Vinyl; 9,400 Gallons; 3'5 to 5'8 deep; Hayward Self-priming Super Pump, Pro Series Sand Filter, CL 220 Chlorinator, ColorLogic 4.0

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    Re: PVC Piping Repair

    spread silicone caulk around the pumps suction/inlet pvc fitting, do this while the pump is running, and anywhere else you think an air leak could be, on the suction side of the pump only, it is a waste of time trying to stop any water leaks from the return/pressure side of the pump, anything that you can notice that is loose as far a hose or pipe that connects to the front of the pump, and anywhere to where the pipe connects at the end, like the skimmer, can be a possible air leak source,

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    Re: PVC Piping Repair

    Hi pool & spa tech,

    Thank you so much for your reply.
    We used silicone caulk last week. It did not hold so we removed it.
    Suzanne ~ Oval 12' x 24', IG Vinyl; 9,400 Gallons; 3'5 to 5'8 deep; Hayward Self-priming Super Pump, Pro Series Sand Filter, CL 220 Chlorinator, ColorLogic 4.0

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    Re: PVC Piping Repair

    Where is the leak. Epoxy may not be a good choice.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: PVC Piping Repair

    Hi duraleigh,

    The leak is on the left intake (suction side) coupling fitting on the part that is nearest to the ground. That side of the piping is not straight like the other side that is marked with blue tape. I've attached a pic. Hopefully that helps.

    Thanks in advance for your reply and any input.
    Attached Images Attached Images
    Suzanne ~ Oval 12' x 24', IG Vinyl; 9,400 Gallons; 3'5 to 5'8 deep; Hayward Self-priming Super Pump, Pro Series Sand Filter, CL 220 Chlorinator, ColorLogic 4.0

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    Re: PVC Piping Repair

    Do you think the leak is because of misalignment? You might want to consider using a pvc pipe heater to reduce the offset strain.
    18,000 gunite pool/spa combo. Pebble tec, iaqualink rs8, cl580 filter, aquapure 1400, 400k btu lx heater, 10 solar panels, jandy 1hp, 1 1/2hp, and 2hp stealth pumps for circ, spa, waterfall

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    Re: PVC Piping Repair

    Assuming that valve is threaded (looks like it is) I would suggest you cut the left PVC coupling fitting below the coupling and remake everything back up to the valve.

    Harder, I know, but I don't think you will have much luck getting that epoxy to work in that case.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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