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How hard is it to replace a section of copper pipe
Posted on 4/18/17 at 3:26 pm
Posted on 4/18/17 at 3:26 pm
A few months back I had a small leak under the kitchen sink. Traced it to the water filter. The city cut the water off for a few hours to connect the new subdivision being built across the street to the water main. When they turned it back on I think the pressure loosened something.
All has been fine since then. I think that was January. Today my wife tells me it's leaking again and sent me a pic. I don't think it is the filter this time. I'm looking at replacing a short section of pipe and two hose type connections. It is old copper from the late 60s. Is my best bet getting a copper to pex conversion and running that straight to under the sink and adding shutoffs there? I'd like to replace hot and cold while I'm at it. I have easy access from the basement below.
All has been fine since then. I think that was January. Today my wife tells me it's leaking again and sent me a pic. I don't think it is the filter this time. I'm looking at replacing a short section of pipe and two hose type connections. It is old copper from the late 60s. Is my best bet getting a copper to pex conversion and running that straight to under the sink and adding shutoffs there? I'd like to replace hot and cold while I'm at it. I have easy access from the basement below.
6
Posted on 4/18/17 at 3:31 pm to TU Rob
quote:
best bet getting a copper to pex conversion and running that straight to under the sink and adding shutoffs there?
Sounds like a sound method to me. Old school would be to splice in a piece of copper by soldering, but if you can avoid that, I would.
Posted on 4/18/17 at 3:35 pm to Boudreaux35
Yeah I don't have a ton of space under there and would like to avoid a torch if at all possible.
Posted on 4/18/17 at 3:38 pm to TU Rob
They make direct copper to PEX in-line connections now so it's extremely easy. biggest thing is to make sure your copper is cut smooth and de-burred, then it's just a matter of snapping the connections together.
Posted on 4/18/17 at 3:41 pm to TU Rob
Posted on 4/18/17 at 4:29 pm to Purple Spoon
quote:
Purple Spoon
Thanks. I saw those on Home Depot's site and was coming here to ask about them.
Posted on 4/18/17 at 4:52 pm to TU Rob
I would use copper and a sharkbite connection. That is the easiest way to do it.
Posted on 4/18/17 at 4:59 pm to TU Rob
Shark bite fitting or compression fittings
Posted on 4/18/17 at 5:50 pm to Purple Spoon
quote:
Shark Bite fittings work decent
I've used these on some rental property repairs and they have held up so far (5 years).
Posted on 4/18/17 at 6:28 pm to TU Rob
Shark Bite connectors and pet will hold solid..... 
Posted on 4/18/17 at 11:14 pm to Yewkindewit
So not the supply. It is the drain. I replaced the rubber on the pvc to copper connection and it is still leaking. Except it is more like sweating from the top of the pipe. Am I looking at replacing the copper with pvc drain or is there a patch for copper drain pipes?
Posted on 4/19/17 at 10:22 am to TU Rob
Looked at it again this morning with a fresh set of eyes. It is 1-1/4 copper going down about 3 feet and connecting to a larger cast iron main drain pipe. I'll need two 90 degree pvc joints. One to go left after it enters the wall, and another to turn down to the basement. From there I think I can route it towards the pipe pretty easily since I'll have more room to work. What is common for joining PVC to cast iron? It does have a larger connection at the iron, I'm guessing 3 inch. From there it joins up with the 4-inch main drain further down, but I only need to connect to this point. The only thing going through this is the sink and dishwasher drain, so no need to go larger than 1.5 inch PVC.
Posted on 4/24/17 at 1:25 pm to TU Rob
Quick update and thanks to the OB. I figured out that it wasn't the drain, but to make a long story short, I replaced the drain anyways, and that is when I found the leak on the hot water line. I used the sharkbite and pex to repair that. Worked great. The actual cause of the leak was the old water filter. Two microscopic holes squirting the tiniest streams of water, over to the left, and hitting the drain pipe. Like I mentioned last week, it looked like it was sweating on the top of the old metal pipe. Well, that was actually this little stream of water, more like a mist, hitting the pipe. Either way, I got it all repaired and learned a lot in the process. PEX is awesome.
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