Questions tagged [copper]

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15
votes
9answers
213k views

How do I "fix" a bad sweat (solder) joint?

I tried soldering some 1/2" copper (to make something like this) and some of my joints are horrible. I tested it with water and some of the joints leak. What is the best way to fix the joints? ...
0
votes
1answer
176 views

Can I safely cut a copper compressor pipe with r600a gas?

Can I safely cut a fridge compressors copper pipes if it uses r600a gas. I've read of people taking out fridge compressors but I want to check whether it's safe to cut the pipes like this?
2
votes
3answers
15k views

Wire nut several wires together

I need a wire nut large enough so that I can bundle seven 14 gauge neutral wires together. I am trying to splice it so I can connect it to my new smart wifi leviton light switch. I don't know which ...
4
votes
3answers
5k views

Corrosion on copper pipes due to insulation (with foam)

My incoming water pipe is copper and it is a brand new installation with no leaks. But due to the hot humid weather (even in the basement) it sweats due to condensation. Should I insulate it? The ...
5
votes
1answer
3k views

Should a twisted copper pipe be replaced?

While replacing a hot water tank I foolishly twisted the out pipe by losing my grip on the wrench. The copper pipe twisted, so I twisted it back gently, but it now has a kink in it. Is this likely ...
2
votes
1answer
231 views

How do I get rid of the sulphur smell from cold water only in one sink?

In my powder room only, I have a strong sulphur smell that comes out of my cold water faucet only. I have a water filtration system for my house but only have this problem in one sink. I have ...
2
votes
2answers
9k views

Tiny leak in soldered copper 1/2" pipe joint

I have recently completed a solder joint using a repair coupling (1") for 1/2" copper pipe for my washer. However, it appears that there is tiny leak - less than one bead of water / day. Is there a ...
1
vote
2answers
314 views

Problem with NPT threads on dual check valve?

I'm installing a 1" Watts LF7R dual check valve backflow preventer and this model has a female NPT thread on both ends, according to the documentation, and it does have 7 threads and looks like it's ...
0
votes
2answers
658 views

How should I modify this drain pipe

I just removed a fiberglass tub/shower alcove and with to create a walk in shower. I need to relocate the drain, to the center of the alcove. I also need to get rid of the "periscope" part of the pipe....
0
votes
1answer
970 views

Is underground electrical cable underwater capable?

Is electrical cable that is rated for installation underground, also capable of being laid underwater? Through a stream or across a pond? Also, please make sure to mention if it is possibly but not ...
0
votes
2answers
12k views

Repair holes in copper pipe

The drain pipe under my sink is made of copper and has a couple of small holes just before it goes into the wall (and eventually leads out to a greywater tank). The picture below is taken from ...