Darn Leak. - Plumbing - Contractor Talk

Darn Leak.

 
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Old Yesterday, 10:38 PM   #1
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Darn Leak.


Thanksgiving Thursday we start out with a leak in the kitchen that runs water out onto the hardwood floor.

Looks simple enough, check the basement, appears to be coming from the cold side of the faucet, must be between the cabinet bottom and the flooring. Cut out the CPVC and add in a piece, new valve etc. good to go.

The old pipe looked good though and the floor was drying so figured that was it.
Later the leak reappeared...must be on the hot side, the valve to the washer was clearly leaking, not much but some. Cut that all out and replaced two valves.

Looks like I've got it all dried in.

Next day I'm still getting water on the floor and into the basement....Drain line has to be the issue....

Drain line runs through the wall behind the cabinets, so in I go.

Had to cut out the back of the cabinets, the drywall and find that the pipe is definitely leaking in the area of the 3 wall studs.

I cut the pipe out and see it clearly is the issue. No problem except that the old copper pipe is smaller than the new PVC and I have to make a new larger hole in an old hole....Not much fun. But I managed.

I don't know why this pipe failed but I'm glad I could fix it.
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Old Yesterday, 10:40 PM   #2
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Re: Darn Leak.


The final result.
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Old Yesterday, 10:59 PM   #3
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Re: Darn Leak.


What a frustrating situation!
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Old Today, 11:36 AM   #4
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Re: Darn Leak.


Copper drain lines? Haven't seen that in a while.

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Old Today, 12:00 PM   #5
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Re: Darn Leak.


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Copper drain lines? Haven't seen that in a while.

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I've got 30' OF 3" Copper drain in the basement. Actually had a guy tell me I should take it out and trade it in for scrap and replace with PVC. Idiot. Couple bucks traded for tons of labor. I guess his labor is free.
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Old Today, 12:18 PM   #6
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Re: Darn Leak.


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Copper drain lines? Haven't seen that in a while.

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Yeah, house built in 1965. All the DWV piping is copper till just before going into the concrete slab it changes over to cast iron.

I have a run of copper in my basement also from the back to the front of the house and like you Leo, my copper will stay where it is.
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Old Today, 01:22 PM   #7
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Re: Darn Leak.


I keep copper.
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Old Today, 06:09 PM   #8
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Re: Darn Leak.


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I've got 30' OF 3" Copper drain in the basement. Actually had a guy tell me I should take it out and trade it in for scrap and replace with PVC. Idiot. Couple bucks traded for tons of labor. I guess his labor is free.
Ditto...1965 or '66...all copper on the drains.

Had the place re-plumbed with pvc supply lines 20 years ago.
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Old Today, 06:17 PM   #9
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Re: Darn Leak.


My folks just had a similar copper in-wall repair. House built in 65ish.
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Old Today, 07:09 PM   #10
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Re: Darn Leak.


Built in '91.

1891 that is. You can see lead plumbing lines in the basement that were fed through the foundation. Not in use obviously. Don't know when the copper went it, but the house has lots of everything. Cast iron, copper, pvc.
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Old Today, 10:17 PM   #11
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Re: Darn Leak.


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I don't know why this pipe failed but I'm glad I could fix it.
It probably failed from abrasion of the wood expanding and contracting against the pipe over several decades, it's common when the holes are drilled just for the pipe with no clearance. Buildings move, especially in areas with widely varied temperatures.

That being said, if I were to build my own house tomorrow it would be plumbed with hub and spigot cast iron and copper waste and vent...
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Old Today, 10:30 PM   #12
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Re: Darn Leak.


Once I found the leak and removed the pipe, I thought the same thing, movement over time. The heating and cooling of the pipe daily, sometimes many times a day, as well as seasonal shifting just wore it out where it passed through those 3 wall studs.
It did fit pretty tight.

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