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13
votes
3answers
7k 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 ...
11
votes
3answers
2k views

Why would you use copper over CPVC or PEX?

Are there any advantages to using copper rather than CPVC or PEX?
10
votes
2answers
2k views

What caused a burn mark near my hot water pipes?

I was doing some household cleanup in the storage room where my heat tank is located when I noticed a burn mark on the wall frame near the pipe that goes from the heat tank to the shower next room. ...
9
votes
5answers
4k views

Is this plastic pipe connecting city water to the main line dangerous?

I bought a whole house water filter to hook up to the main water line. The plumber who came in said that he won't be able to install it because the pipe that comes from the ground hooked up to the ...
9
votes
3answers
485 views

Do I need to do anything for my external spigots during a short hard freeze?

Like the questioner in Do I need to do anything to protect my pool during a rare freeze? I live in central florida and its going to be a hard freeze tonight. Do I need to let the spigots drip or cover ...
9
votes
4answers
353 views

Removed sink, now what?

We've decided to replace the sink (which was way too small) with one from Ikea. This is how it looks after the removal: Now for the problems: The sink that was there before was a free-hanging ...
8
votes
1answer
1k views

How can I permanently seal or cover a crack where a steam pipe enters the ceiling?

We're looking for a solution to cover or fix a crack that keeps reappearing around a a steam pipe we have. No matter how well we patch it and paint over it, it keeps coming back. Can anyone ...
7
votes
2answers
5k 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 ...
7
votes
4answers
22k views

How do I cut and cap copper water tubing cheaply and safely?

In my basement I have copper water pipes that look like they hooked up to an old shower. Now they don't hook up to anything. I want to prune these pipes where they come off the main water line (so I ...
6
votes
3answers
453 views

How do you insulate your pipes to protect against freezing?

So, my pipes froze in my house today, and it made me realize that I should better insulate them for the rare days that it gets in the teens here... What should I do to insulate them?
6
votes
3answers
405 views

How can I locate the pump in a wet open-vented central heating system?

Lost: One Central Heating Pump. Reward offered (in reputation points ;) I have a wet open-vented central heating system, and I've turned it on after six months to find the radiators aren't getting ...
6
votes
1answer
716 views

Sound proofing a waste pipe

In our (badly designed) flat the upstairs waste pipes run straight through our bedrooms. It's a shame as the outer corridor is right next to our bedroom, so it would have been sensible to put it in ...
6
votes
1answer
583 views

Do tub drains of the same diameter ever have different thread-per-inch counts?

My tub's drain flange has had the little cross piece inside it broken out, which means I cannot screw a grid drain into it. Right now, it's totally open and an invitation for my toddler to drop stuff ...
5
votes
4answers
1k views

Why do I have two parallel gas pipes?

I've got a water heater and a hot water radiator furnace sitting next to each other, both on gas. The strange thing is that there are two parallel gas lines feeding each one of these which come from ...
5
votes
2answers
6k views

How can I join two lengths of flexible 1/4" copper pipe?

I have found a leak coming from under my refrigerator, after pulling it out to get behind it I found the 1/4" copper pipe that supplies the water for the ice maker and water in the door was severed ...
5
votes
3answers
5k views

AC Coolant pipe has condensation and leaks inside wall

I've got an old AC unit (probably 13+ years old) that came with the house that I bought. This summer I noticed some water damage on the drywall in the basement, so I cut the damaged drywall away, and ...
5
votes
2answers
856 views

How do I realign copper water pipes after cutting?

I cut a 1/2" copper pipe to insert a tee fitting a which will eventually go to a Pex line for an outdoor tap. The copper pipe was vertical, and when I completed the cut I found that the pipe was ...
5
votes
4answers
4k views

How do I get these toilet shut off valve out?

As title says I am trying to figure out how to remove the old shut off valve from the pipe. I've been watching lot of videos, reading up on articles and all seem to deal with compression fit type but ...
5
votes
2answers
924 views

How can I replace this unusual kitchen sink drain pipe?

I'm trying to replace a broken 1-1/2 inch L-shaped brass pipe under my kitchen sink, as in this picture: At one end, it's connected to the sink drain, which if I'm understanding the terminology ...
5
votes
1answer
402 views

Should I use glue or o-ring joints on a buried PVC waste pipe?

What are the advantages and disadvantages of both systems of joints for "non-pressure" pipes that are buried? O-ring joints are more expensive, but easier to do on buried pipes. Glue on the other ...
4
votes
3answers
18k views

How high can I stretch my washing machine drain hose?

The waste hose through which the water is removed from my washing machine is inserted into a vertical pipe extending from the floor with a U shape at its end. The problem is that there is foam coming ...
4
votes
3answers
2k views

How can I attach a pipe to a flat surface?

What type of fitting is used to attach a pipe to a flat surface such as a barrel or other container? The reason I ask is because I have built a tray out of sheet metal that is intended to contain ...
4
votes
3answers
6k 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

What are these two pipes coming out of the house?

I am trying to figure out the purpose of a couple of pipes that are currently coming out of the house. First, a couple of notes: One-story house. HVAC system is in the attic. It is winter here. ...
4
votes
3answers
12k views

Why do our baseboard heating pipes make a loud banging noise after a new furnace was installed?

We had a new furnace installed about a month ago. The heating in our house is hot water baseboards. Ever since the new furnace was installed, when the heat comes on or turns off, there is a loud ...
4
votes
2answers
1k views

Whats the difference between black, blue and red PEX pipes sleeves

I'm using PEX pipes for water tubing, but I'm not sure which sleeve type should I use for hot and cold water pipes. Whats the difference between black, blue and red sleeves? and which should I be ...
4
votes
1answer
1k views

How to reduce heating of cold water pipes in the ceiling space?

On a hot day our kitchen cold tap, if it hasn't been run for a while, will produce water at a temperature up to around 50-55 degrees C shortly after it is turned on. We haven't measured the exact ...
4
votes
2answers
720 views

What do you call this old pipe to bath tap join and how do I remove it?

I'm trying to replace the bath taps. I'm at the point where i've removed one, but can't get the 2nd one off. They are connected differently (go figure). See attached image: As i'm new to plumbing i ...
4
votes
2answers
930 views

Is there hard-water deposits inside the pipes in my house?

I have a fairly new home, built in 2007, in Arizona. I noticed today that most of the faucets in our house are starting to get hard water deposits on them where the water is coming out. It got me ...
4
votes
5answers
288 views

What are the possible ways to prevent heating pipes in an entryway from freezing?

I live in Maine, and it can get cold in the winter. My house has baseboard hot water heating and three heating zones (basement, first floor, and second floor). We have a mudroom/entry room that I ...
4
votes
5answers
21k views

Is there a way to thaw a frozen pipe, if you can't access the pipe?

Big freeze, new house. Just found out the add-on bathroom was plumbed by amateurs, and the cold water supply froze. I don't have access to the frozen section of pipe (without major demo), so I can't ...
4
votes
5answers
19k views

What is the best quick repair for a drain pipe?

In particular, a cast iron drain pipe. It doesn't have to be pretty, but needs to be effective and should last until it can be fixed properly.
4
votes
1answer
2k views

How do I modify a refrigerator water line to add a shut off valve and flexible pipe?

I recently bought a house and bought a new fridge to go with it. The copper pipe that connects to the fridge water has a shut off valve underneath the house and is extremely inconvenient to access. ...
4
votes
1answer
2k views

What is the white, crusty, crumbly stuff I find in my kitcken sink drain pipes?

From time to time my kitchen sink needs to be unplugged, and each time I invariably find accumulations of a crusty, crumbly white material in the pipes. It looks a lot like old cheese, has no ...
4
votes
1answer
270 views

How can I frame this area of my basement wall around my water main?

I have started the process of framing my basement, but I've hit a bit of a snag as I'm not sure how exactly to frame around our water main. My original idea was to frame two walls (floor to joists) on ...
4
votes
1answer
8k 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 ...
4
votes
1answer
566 views

How to drain a baseboard radiator system for a repair? How to refill the system?

I have a leak in the second zone in my baseboard radiator system. When installing some drywall in the room the previous owners nicked the copper pipe with a drywall screw, and it appears to have ...
3
votes
1answer
5k views

Why am I seeing stagnant water inside the shower drainage pipe hole?

I was cleaning the shower drainage pipe (removing hair etc) in the upstairs bathroom and I can see water around 1 foot deep. See the pic. Is that normal? Shouldn't the pipe be empty? If water stays ...
3
votes
1answer
3k 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
3
votes
2answers
1k 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
2k views

How to patch this PVC elbow connection?

I bought a home about 3 months back, and recently discovered a slow leak under a wall in my utility room. I ended up removing that part of the wall to get to it, and the leak is coming from the feed ...
3
votes
5answers
24k views

White solid drain pipe vs black flexible corrugated pipe for a french drain

Which one is preferable if you have a straight line 2 feet deep trench in mostly clay soil? I'll put either one in a sock with gravel. There are some roots around the trench so I thought the solid ...
3
votes
3answers
119 views

How can I extract a broken off 1/2 inch threaded galvanized pipe?

Looking for options on removing a 1/2 inch threaded galvanized pipe broken off with about a third of an inch of it still inside the hole.
3
votes
2answers
53 views

What could cause reoccurring leaks in a hot water pipe?

I have a 12 year old house. The past couple of months a couple of hot water pipes have sprung pin-hole leaks at the solder joints. This has happened on four separate occasions. I've had three ...
3
votes
1answer
509 views

Can I reuse cold water copper pipes for hot water?

I have a segment of copper pipe for supplying cold water to my gas heater currently. It runs inside a wall so I don't want to replace it. Now I need to change the piping and want to reuse that ...
3
votes
2answers
159 views

How should a section of cast iron piping be replaced?

I just discovered a leaking section of cast iron pipe in my basement. There is moisture around the joints, but I guess there could be pinhole-sized spots or a crack on the bit I can't easily see. I'm ...
3
votes
2answers
184 views

Can/Should I Move These Pipes?

I need to fix a broken ball valve (luckily the valve doesn't leak until I turn it on) that runs to an outside faucet. Also, all of these pipes are CPVC. When I looked at replacing it, they seemed to ...
3
votes
1answer
3k views

How do I easily separate unglued PVC pipe from joints?

I've been retrofitting an existing PVC irrigation system around my house. Part of that work requires that I work in shallow holes adding T joints and elbows in places where there were none before. In ...
3
votes
3answers
369 views

How can I straighten pipes behind a wall?

The original builders did a shoddy job when they installed the plumbing in the bathroom, causing the taps/faucets to come out of the tiled plasterboard wall at a slight angle - about 5 degrees - so ...
3
votes
1answer
692 views

At what temperatures do pipe sleeves protect pipes from freezing?

Pipes start icing at 20ºF and below. Down to how many ºF do the foam sleeves protect the pipe? The foams I placed in my outdoor pipes had a 0.35" thick polyurethane foam surrounding them. This is a ...