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Thread: Leak

  1. #1
    DIY Junior Member
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    Default Leak

    We've got a small leak in our feed line from the water heater to the furnace. It drips about a drip an hour and worries me. Attached are some photos.

    Is there a way to fix this without draining the heating system? It being winter here I'm too keen on doing that. The feed can easily be shut off, but the furnace side I'm not sure about.
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  2. #2
    Journeyman & Gas Fitter Doherty Plumbing's Avatar
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    Quote Originally Posted by krider View Post
    Is there a way to fix this without draining the heating system? It being winter here I'm too keen on doing that. ]
    Only if there is an isolation valve between the leak and the heating system.

    If not you're draining it back

  3. #3
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    It doesn't look like there is. There's a valve on the return, but this line with the leak also looks to go directly into the furnace.



    Is there a recommended temporary way of patching this type of leak? A friend suggested duct tape but that doesn't seem too sturdy. How likely are these types of leaks to burst? Is it safe (for the system) to turn off the feed line?

  4. #4
    Journeyman & Gas Fitter Doherty Plumbing's Avatar
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    Quote Originally Posted by krider View Post
    It doesn't look like there is. There's a valve on the return, but this line with the leak also looks to go directly into the furnace.



    Is there a recommended temporary way of patching this type of leak? A friend suggested duct tape but that doesn't seem too sturdy. How likely are these types of leaks to burst? Is it safe (for the system) to turn off the feed line?
    A leak right on a fitting like that is a tough one to repair. If it was on a straight piece of pipe you could use a rubber repair coupling. If you try cleaning the fitting up you might just make the leak worse.

    If I were you and in your situation I would just put a bucket under it and check on it periodically. It shouldn't get signifigantly worse at one time. It will slowly get worse and worse and at a slow rate. Heck sometimes the water build up will even seal the leak off.

    In the spring when you don't need heat shut it down and repair it properly.

    That's what I would do anyway.

  5. #5
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    The water seems to be dripping not from the fitting, but from the center of the straight pipe (I know it's tough to see in the pictures, but there are 2 main spots of corrosion). Not to say that the fitting isn't corroded and possibly has issues too. So perhaps I could put a rubber repair on the straight part that the water is coming from. So do you still think it would be best to let it be...?

    We already had 1 leak in our basement and the wife is hot on my butt about any more water!

    I appreciate you help!

  6. #6
    Journeyman & Gas Fitter Doherty Plumbing's Avatar
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    Quote Originally Posted by krider View Post
    The water seems to be dripping not from the fitting, but from the center of the straight pipe (I know it's tough to see in the pictures, but there are 2 main spots of corrosion). Not to say that the fitting isn't corroded and possibly has issues too. So perhaps I could put a rubber repair on the straight part that the water is coming from. So do you still think it would be best to let it be...?

    We already had 1 leak in our basement and the wife is hot on my butt about any more water!

    I appreciate you help!
    You could try and put one on but again once you clean the pipe up you might make the leak worse.

    I would probably still put a bucket under it and fix it in the spring. *shrugs*

  7. #7
    DIY Junior Member CtSebby's Avatar
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    I did see this copper pipe repair in the plumbing section of home dep.ot. It looks like a sillyputty type of material. Never tried it though. But as a temporary fix it might do.

  8. #8
    DIY Member msgale's Avatar
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    no glue/sticky arrangement can work, since the water is under pressure and will remove the glue as it leaks out.

    what's wrong with the bucket approach till spring,then you emptythe pipe and fix it at your leisure

  9. #9
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    Spring, summer, fall, winter, what does it matter? Drain it down and fix it. No matter when you do it, it should only take about an hour tops.

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