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Thread: Leaking return line at fernco

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    Leaking return line at fernco

    One of the return lines is leaking. It's a new pool, but I'm sure it wasn't leaking until recently. So I'm not sure if I bumped into it while cleaning or a dog may have bumped into it. Either way it's leaking from the top portion of this fernco coupling. If you look close you can actually see it in the picture. I tried the obvious tightening of the band clamp and it seemed to make it worse so I backed back off on it.

    Any suggestions? I kind of like the fernco fitting but not opposed to replacing it with a hard fitting if necessary. I just don't know how I'll do it. There's a valve back at the pump, but there's no stopping the water from coming out of the return fitting when I disconnect that fernco. Unless I somehow plug the return port inside the pool, which brings me to my next question... any idea on how to thread or connect things to the returns on a Doughboy? There's no threads inside, so I don't know how I would go about connecting a DIY aerator or novelty fountain, etc...

    ~16,200 gallon 18x34 Doughboy AG pool. Fully above ground (not buried, no deep end). TF-100 test kit. Variable speed pump. Cartridge filter.

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    Charlie_R's Avatar
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    Re: Leaking return line at fernco

    Do you have a way to measure the inside diameter of your return fitting inside the pool?

    Check here, and see if there is a pipe outside diameter that will slip in, friction fit: http://www.engineeringtoolbox.com/pv...ons-d_795.html

    If there is, a piece with a cap on the end will stop the water from the pool long enough for you to glue the proper fitting in.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: Leaking return line at fernco

    Thanks. I'll check when I get home today. Do you recommend I replace the ferno with something hard or just try to get it to re-seat properly? I wonder why they installed it that way, surely the fernco is even more expensive than a PVC reducer. If you recommend replace with a PVC, do you know what type of plastic that return fitting is, and if I can use regular PVC glue with it? I wonder if that's why they went with a fernco.
    ~16,200 gallon 18x34 Doughboy AG pool. Fully above ground (not buried, no deep end). TF-100 test kit. Variable speed pump. Cartridge filter.

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    Re: Leaking return line at fernco

    Wish I watched them do that part... if it's the return fitting on this page, it looks like there's some odd threads, but not really threads, on that fitting preventing a hard smooth walled pipe from sealing:
    http://www.doughboy-pools.com/produc...therparts.aspx
    ~16,200 gallon 18x34 Doughboy AG pool. Fully above ground (not buried, no deep end). TF-100 test kit. Variable speed pump. Cartridge filter.

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    Charlie_R's Avatar
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    Re: Leaking return line at fernco

    That appears to be a barbed fitting. Made for poly type tubing. Not a glue type at all.

    I would guess that is why the fernco.

    Options:

    Try to reseat the fernco;
    Replace the return fitting with a glue or threaded;
    Replace the fernco with a short piece of pool hose.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: Leaking return line at fernco

    Since my other return is doing fine, I'm going to just try to re-seat this fernco. The inside diameter is 1" so I'll give the 3/4" pipe a whack. I've read where I can use silicon caulk inside the fernco to help with a seal, might try that if re-seating it doesn't work. Just concerned I won't be able to get it off cleanly in the future if needed.

    Thanks Charlie.
    ~16,200 gallon 18x34 Doughboy AG pool. Fully above ground (not buried, no deep end). TF-100 test kit. Variable speed pump. Cartridge filter.

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    Charlie_R's Avatar
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    Re: Leaking return line at fernco

    If you use the silicon on it, then later need to take it off, a pair of pliers to wiggle it back and forth will break the silicon loose from the pipe, then you can peel it from the fernco. BTDT.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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