For questions generally relating to hollowed out materials used to convey a liquid, gas, or other fluid substance.

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14
votes
3answers
17k views

How can I tell if these pipes are gas lines or water lines?

I recently moved into an in-law unit of a large old house. In the kitchen, there are two pipes coming out of the wall (one protruding out a little more than the other). I had assumed they were gas ...
12
votes
3answers
3k views

Why would you use copper over CPVC or PEX?

Are there any advantages to using copper rather than CPVC or PEX?
3
votes
1answer
165 views

How many outlets can 1/2" copper pipe support?

My basement apartment's hot water pipe runs starting with 3/4" from the heater to the first outlet, the bathtub and the 2nd one, the washer. From the washer, it goes to the bathroom sink (please don'...
1
vote
0answers
297 views

opening water pipe/tap has hissing noise throughout the house [duplicate]

Possible Duplicate: How to eliminate the “whooshing” sound of water running though pipes. I have a 3 story townhouse. Any time when I open a tap, even very slowly that water is ...
9
votes
2answers
9k views

Why does our shower make a screaming noise?

Our shower has a problem...It's very loud! When water hits the correct temperature and flow the shower immediately starts shrieking like a banshee. It seems to be related to the flow because we can ...
6
votes
4answers
14k views

Is it wrong to connect multiple J-bends (traps) together?

My tenants recently told me that they have constant clogging problems with their bathroom sink and had me come take a look at it. I found the following 3-trap configuration: This was done because ...
4
votes
2answers
2k 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 ...
3
votes
2answers
58 views

Any advice on unthreading old Brass pipe?

Any advice on unthreading old Brass pipe? The brass pipe is in the back with the spigot attached.
4
votes
1answer
15k views

Can I move my bathroom sink's drain pipe about 6 inches to the right?

I found the vanity I wanted for my bathroom, but it doesn't fit due to the position of the drain pipe. It needs to move about 6 inces to the right. I assume there is some sort of adapter or ...
3
votes
1answer
5k views

Is it necessary to replace lead gas pipes?

I have some lead piping in the cellar where the gas comes into the house. Does this comply to current Gas Safe regulations?? Edit: England
2
votes
1answer
3k views

Under bathroom sink piping (exposed)

We are looking at setting up the piping for under our wall mounted sink (no vanity, ie, piping will be exposed). And after our contractor finished putting the wall we noticed that the hole from the ...
2
votes
1answer
472 views

What is this called (adjustable angle pipe footplate)?

I'm constructing an EMT pipe tarp canopy frame. It will be a shed roof. One side will be pipe supported (low end) and the other side (high end) will be mounted to the top of my garage roof. The plan ...
2
votes
6answers
291 views

How do I remove or cut a sewer pipe at edge of our basement slab?

What's the best way to remove the unused sewer / storm-drain pipe in the attached picture? It's coming up through the edge of our basement slab where it meets the foundation wall? We want to remove ...
1
vote
1answer
67 views

What can cause copper pipe to corrode?

We have a corroded main water pipe that connects to a valve that goes into the house. The corroded pipe rises from the pave driveway and ends in a valve at the top. Here's a picture: The building ...
0
votes
1answer
53 views

How to deal with a corroded copper water pipe?

We have a corroded copper pipe. I'm not interested in what caused the corrosion. I just want to know how to treat it. What can I do to stop the corrosion? Paint it? What would I paint it with? ...