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10
votes
7answers
88k 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
3answers
5k 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 ...
6
votes
1answer
2k 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
2answers
13k 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
2answers
698 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 ...
4
votes
3answers
699 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
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 ...
4
votes
2answers
5k 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 ...
4
votes
2answers
88 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 ...
4
votes
2answers
11k 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
9k 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
4k 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
531 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 ...
3
votes
1answer
4k 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
102 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
155 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?
2
votes
2answers
1k 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
3answers
1k 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 ...
2
votes
2answers
4k 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
1answer
373 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
2answers
80 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
3answers
452 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 ...
1
vote
2answers
92 views

How to seal PVC-U and copper pipes together

How to seal a gap between hard PVC pipe and copper coil as visible on the picture below? It needs to stand small vacuum (45 mmHG = 1.8inHg = 6kpa = 60mbar = 0.87psi). What is the best way to do it? ...
1
vote
1answer
32 views

Remove over tighten copper pipe fitting

The older plumber left a over tighten copper pipe (threaded) to the shower valve. I tried but couldnt remove it with wrench. I dont want to use too much force as it may break the valve. I wonder if ...
1
vote
1answer
101 views

Acceptable tension on copper piping?

Earlier this week I had a plumber rough in valve/piping for a shower renovation. Since then, I have decided to go back and redo the walls (long, long story) and, as a result, the final finished wall ...
1
vote
1answer
59 views

How to remove old A/C piping in my house?

When I had my new A/C installed I moved it to the other side of my house (right next to the furnace), so now I have a bunch of old copper piping running about 30 feet from one corner of my house to ...
1
vote
1answer
736 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 ...
1
vote
1answer
164 views

Should a copper central-heating water pipe be mortar-ed in when passing through an internal wall?

I've been trying to track down some very annoying 'ticking' sounds that happen within seconds of the central heating coming on. I know that it likely to do with copper central heating pipes under the ...
1
vote
1answer
29 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?
0
votes
3answers
6k views

Using PEX for a water heating system

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 ...
0
votes
4answers
5k 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-...
0
votes
2answers
6k 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 ...
0
votes
1answer
74 views

How can I connect copper pipe to an unthreaded, galvanized pipe?

I have a di-electric union which I want to install, but the union's galvinized side is threaded. The unthreaded, galvanized pipe is attached to the house so I can't easily thread it. Perhaps there's ...
0
votes
2answers
232 views

Sweat 3" Copper With Mapp Gas Torch?

I need to remove a section of 3" copper, and replace it. Has anyone ever done this with a single Mapp gas torch? I'm not sure if its going to have enough heat to get it done. I probably could get it ...
0
votes
2answers
54 views

Spigot/spicket replacement in tight quarters

I noticed that my spigot was leaking. It was only leaking out of the hole where the water normally comes out. I made the mistake of slightly tightening the packing nut without having another wrench to ...
0
votes
1answer
37 views

Can a connection be established from copper wire to stainless steel bus for power connection? [closed]

I have this question. A copper cable to be connected(either crimped/ soldered/ pressure/screw fitted) to stainless steel bus bar and the bus bar is to be connected to the power supply of 12 V DC. ...
0
votes
3answers
82 views

Copper failing under the house

I am in a 10 year old house. Custom built, very nice home. Twice in the last year, have encountered a leak under the slab. The first time about a year ago, I agreed to have the lines rerouted ...
0
votes
1answer
4k views

How do I add a P-Trap to a copper drain?

I started to get a smell in the downstairs bathroom and after ruling out the wax seal on the toilet it is coming from the sink drain. We are in a split level so technically its in the basement. ...
0
votes
0answers
16 views

What is involved in replacing this galvanized pipe with copper?

The brass mixer is fine and I want to keep it. However, I do want to replace the galvanized pipe that feeds it with a copper line. Is this just as simple as removing the male threaded connection and ...
0
votes
0answers
58 views

Should a home be plumbed in a loop?

My 3 story home is plumbed in an incomplete loop. Hot and cold lines run from one end of the basement to the other, and then back. The entire system terminates with runs to the master bath, only a ...
0
votes
0answers
18 views

multi-family building leaking elbow in tight space inch and a half copper cold water supply

Main water supply for the 16-unit building comes up vertical then flattens horizontally right as it passes through a small opening in a brick/concrete load-bearing wall. Difficult to solder from ...
0
votes
2answers
1k views

Pretty big electric shock when touching my lamp

I just received a fairly large electric shock when trying to turn on the lamp on my nightstand while I was sitting in bed. When we purchased the lamp, it was 110v however we had it changed to 220v ...
0
votes
0answers
75 views

How can I repair the main cold line into the house?

I've repaired 13 breaks throughout the house over the weekend, now I'm down to the inlet coming from 3/4" copper to 7/8"id (I know its crazy size maybe from freeze). Either way I cannot solder, since ...
-1
votes
1answer
156 views

What could be causing the copper green smells in my house when the furnace turns on?

We just re-did the rotting siding on my t1-11 sided fireplace. We replaced siding and covered it with hardi-plank. The problem is, when my furnace turns on, air is pulled from the fire place and the ...