Questions tagged [copper]

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17
votes
10answers
7k views

What can cause a never-frozen indoor copper drain pipe to crack?

The 1-1/2" copper waste pipe than runs from our kitchen just up and cracked two days ago along its length, and for no apparent reason. The crack is in a section of pipe that runs vertically through ...
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? ...
8
votes
7answers
9k views

Repair tiny hole/scratch in copper pipe

I discovered a very tiny hole/scratch in a copper pipe in my basement this morning. It looks like the scratch was caused by a screw that was holding up some wood paneling. The hole is in the middle of ...
8
votes
3answers
26k views

What happens if I shave a little sliver off electrical wire with a utility knife?

I needed to replace an electrical wire with a longer one so I could move an electrical outlet. When I went to cut away the outer rubber cover of one of the wires with a utility knife (yes, dumb, I ...
7
votes
3answers
56k views

How to tell when a plumbing fitting is tightened correctly?

I replaced the supply valve on my bathroom sink with this ¼-turn angle valve. Both valves (hot and cold) are leaking about 1 drop every few seconds at the valve's input. I got them hand ...
6
votes
1answer
3k views

When replacing a supply line to a house in Houston, TX, what is the best material to use?

A house in Houston, TX (southern "sun belt" climate, no frost, but flexible clay soils) has a Polybutalyne supply line running from the meter to the house. It's already burst once and been repaired, ...
5
votes
3answers
32k 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
1k views

resoldering copper waste pipe

I've soldered new copper pipe but have never resoldered it. A shiny band of silver solder remains on the end of the copper pipe after an elbow has been removed from it. Does that shiny band have to ...
5
votes
2answers
2k views

Old solder joints are failing

Working on a small cottage by the Delaware Bay. Last year I had to repair the plumbing in the two bathrooms because the solder joints pulled apart. This year some pipes fell out under the house ...
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 ...
4
votes
3answers
8k views

How do I read the markings printed on the outside of electric wires?

In my recessed lighting project, I finished roughing-in the Romex copper wires and I was about to connect the recessed lighting wires when I noticed the wires from the lights are of a silver-colored ...
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 ...
4
votes
5answers
42k views

Is stainless steel water piping more durable than copper?

After thirty years of usage, the plumbing in my house is starting to fail progressively. The water pipes in my house is made of copper, one of which is suffering from pitting, which results in a pin-...
4
votes
3answers
986 views

Soldering copper pigtails to aluminum wire

As I prepare to remedy my parent's 1965 home's aluminum wiring I have investigated Copalum and Alumicon. Copalum appears to be unavailable. I've tried a few Alumicon connectors but they take a lot of ...
4
votes
2answers
225 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 ...
4
votes
1answer
78 views

Inserting a Tee In 1" Pipe for an Air Compressor?

I have a copper pipe outside my house that is 1" in diameter (Measured 1.1 inches using a digital caliper) that feeds our house's sprinkler system. My dad uses his commercial air compressor to clear ...
4
votes
2answers
19k views

Proper way to attach tapered, threaded connections?

I've been ripping out the PB water line throughout my house and replacing with PEX and a bit of copper piping. However, the few threaded fittings each have very slow leaks. Above the water tank I ...
4
votes
3answers
22k views

Do I have to bury PVC pipe if used outdoors?

I will be installing a hose spigot in a lower patio area that, till now, has had to have several lengths of hose to provide water for some potted plants. There is an existing spigot on a 3/4" copper ...
4
votes
1answer
8k 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
468 views

Why does light switch not use ground wires inside of box?

I was replacing some toggle type light switches to rocker type and ran into something I thought was unusual. There were 3 switches boxes (2 boxes had 1 switch, and the other had 2 switches) I was ...
3
votes
1answer
10k views

Why is there green stuff on my heater pipe?

No, really the baseboard heat is made of copper and is constructed of a series of pipes with fins. they look like heat sinks, or dissipation helpers. Well, was cleaning the carpet by the baseboard ...
3
votes
2answers
2k views

How can I reposition a soldered copper 90-degree fitting

I have a 90 coming out of my wall in my utility room to turn the copper down the wall. I would like to swing it up as I have a taller softener. Do I need to disassemble and start over or might I ...
3
votes
3answers
2k views

Hot water pipe sticking up in back yard?

Found that a copper pipe coming out of ground in back yard is the Hot Water pipe for the house. Turn on the Hot Water, the pipe gets hot. It is sticking up out of the ground and think this is NOT ...
3
votes
1answer
174 views

Why is there copper in the corner of my shower behind the tile and drywall?

I am in the middle of the demolition of my old shower and have come across this copper strip in the corner. What is this used for? I assume it is somehow supposed to prevent water damage?
3
votes
1answer
5k views

Should I be concerned about a green crust on the copper pipes on my boiler?

I have a boiler system, about 9 years old, with copper pipes. Many of those connections and handle faucets have a green crust. Is this a sign of something wrong? What do I do? Should I be concerned?
3
votes
3answers
625 views

Any issue going from 3/8 to 1/2 copper

Old house has lots of 3/8 water line feeding faucets. I want to replace the shutoffs under the sink but really hard to find 3/8 sweat valves. I don't want to use compression on the copper line. ...
2
votes
3answers
27k views

Should I replace all the copper pipe in my heating system with PEX?

I am replacing my existing faucet plumbing with red / blue PEX all over the house. Everything that goes to the sink, dishwasher, washer, bathroom sink and so on will be color coded and installed ...
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 ...
2
votes
3answers
1k views

Would insulating copper pipes keep the water cooler?

All of my plumbing runs through copper lines in an accessible attic in a 1960's slab-on-grade ranch style home in Phoenix, AZ where I don't need to tell you how hot the attic can get for a huge chunk ...
2
votes
2answers
5k views

How do I bend 8-gauge copper wire?

This question may be slightly off topic, but I'm hoping I'll find the expertise I need on this site. I'm making a bird feeder out of a wine bottle, and wrapping 8-gauge copper wire around the bottle. ...
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 ...
2
votes
2answers
185 views

Can a solder joint handle torsion force?

I'm replacing the shower mixing valve in my guest bathroom during renovation as the old one had a good deal of surface rust. This is my first time soldering pipes together. I mounted the new valve to ...
2
votes
2answers
3k views

How would you repair this copper drain pipe, and how much pipe would you replace?

There is a small crack in this drain pipe, and it's so thin there that I can bend it with my finger. The section that's palpably weak is no more than an inch long. The crack is exactly where the ...
2
votes
1answer
2k views

Dryer vent pipes touching copper hot water pipe

I am installing a long clothes dryer vent in the crawl space under my house to replace the old one. I am using a combination of both flexible metal pipes and rigid stove pipes to try to reduce the ...
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
1answer
4k views

Confused about CO/ALR devices versus AlumiConn and Copalum

Our 1960's house in California has aluminum wiring. When we bought it 15 years ago, I wanted the nicer Lutron receptacles and light switches, so I rewired all the outlets and switches using twist ...
2
votes
2answers
2k views

Pros and cons of coupling vs. threaded when transitioning from copper to PVC

I'm replacing a copper DWV pipe with PVC since it's rotting out. It looks like this: There's the cast iron on the bottom going into the foundation, followed by a brass cleanout, a brass tee above ...
2
votes
1answer
116 views

Do these pipes need to be replaced?

We're remodeling a shower and after getting the tile and backer board off, this is what the pipes look like. There isn't any noticeable leak, but it looks like maybe there was at some point? These ...
2
votes
4answers
206 views

Should I have all the aluminum wiring removed from my home or just the damaged portion?

My home has aluminum wiring, which was wired approximately 20 years ago. A single line of wiring connecting bathroom geyser caught fire and got burnt. I am planning to rewire my house again. Should I ...
2
votes
2answers
430 views

Soldering a Tee onto a Copper Pipe That Only Moves About 1cm?

I have a rigid 1" copper pipe that I'm trying to solder a tee onto. It comes off the house and only moves about 1CM up or down. I've already cut it to test how rigid the two pipes were. This isn't ...
2
votes
1answer
150 views

can I mount a copper pipe to stone with an epoxy?

how can I mount a copper pipe vertically to a flat slate stone after first drilling into the stone to insert the end of the copper tubing?
2
votes
1answer
133 views

Copper to CPVC transition fittings : allowed by code to be used inside a wall?

Does the Uniform Plumbing Code (US) allow copper-to-CPVC transition fittings to be used inside a wall? Just to be clear, I'm referring to the hybrid fittings that are part brass, part CPVC.
2
votes
4answers
836 views

Heat transfer to adjacent solder joints

If I want to remove a soldered joint in a shower valve by heating it and pulling it, would that heat cause damage to the other soldered joints about 2-3" away on the valve?
2
votes
1answer
127 views

I'm replacing the under-sink pipes, and I'm confused what connector this is

I'm replacing the pipe under the sink after it cracked. I thought I had figured everything out, but the connector I got doesn't fit due to this non-threaded copper bit above the threads, is it ...
2
votes
1answer
182 views

Modern half-bath copper DWV configuration

First off: I KNOW PVC is fine. I KNOW PVC is cheap. I KNOW PVC is fast. I KNOW PVC is more flexible. I KNOW PVC would still be working [sarcasm] 300 years after I'm dead. Now that I've sufficiently ...
2
votes
2answers
328 views

Can I have confidence in copper sweat joints that were repaired without disassembly?

Ok...I have seen several answers to this but I want to ask something related... I just worked for 16 hours, teaching my son to sweat copper. We re-did his whole house, pulling galv and replacing with ...
2
votes
1answer
187 views

Aluminum to Copper run

I'm in the process of remodeling a bedroom in my house and will be replacing all the drywall. I'm contemplating the idea of replacing the aluminum wire in the room with copper. My question is can I ...
2
votes
1answer
8k views

Removing rigid copper pipe to install dishwasher

I'm trying to install a new dishwasher, replacing the 20 year old one I currently have. I have a compression shutoff valve underneath the sink for the hot water water. It has two outputs, one going up ...
2
votes
1answer
93 views

Plumbing next to a grill

I am installing a outdoor shower on the exterior wall of my house to go with my new pool deck. I have a built-in grill that has an enclosed cabinet underneath. I have a way to run a hot water and ...
1
vote
3answers
4k views

Can a Wood Burning Stove use a stovepipe made of copper for a chimney?

Planning to install woodburning stove one day. The plan includes exposed stovepipe running up through a loft space, through attic, and out to roof chimney. I know the stovepipe comes in black and ...