9 votes
Accepted

Why does a water line behind wall of home have capped off areas above supply area that heads out to wall?

Sometimes we put in up stubs, they fill with air and act as a surge arrestor (helps to reduce pipe chatter).
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  • 95.4k
7 votes

Should I upgrade to 3/4" pipe all the way to my new pex manifold?

Is the manifold 3/4? If you have easy access to do it, then you are correct that now is the time to do it.
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  • 18.7k
5 votes
Accepted

Bench soldering copper pipe into a subassembly

Yes, it's possible to bench solder, and in fact you should generally avoid soldering on an assembled threaded assembly. "Oven soldering" is a completely absurd approach to plumbing. Save it for your ...
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  • 132k
5 votes
Accepted

Can electrical solder be used for joining pipe?

My understanding is that plumbing flux is more aggressive (acidic) and will damage electronics, but that you can go the other way and use flux-core solder on plumbing in a pinch. A few caveats: ...
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  • 104k
5 votes
Accepted

How were these copper pipes attached to the T&P discharge valve likely connected?

That fitting is called a union, it was installed to allow for the T&P and/or the entire water heater to be replaced without needing to cut and resolder the relief valve discharge line. As for ...
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5 votes
Accepted

Should I paint copper pipes exposed to nature?

I would not paint the copper. If you ever need to repair it, paint would be one more problem on making a good leak free connection. If you want to cover the pipe, use foam. Remember, copper water ...
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  • 95.4k
4 votes
Accepted

Why does water come out of the hot supply line when I open the cold?

My sink has a hot faucet on the left side of the sink. It also has a cold faucet on the right side of the sink. If you want warm water, you have to mix it in the basin. If every faucet in your ...
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3 votes

Can I use a Sharkbite connector to join copper to rubber pipe?

SharkBite® only officially supports 4 types of pipe, according to the FAQ Q: What types of pipe can SharkBite fittings be used with? A: SharkBite fittings are certified for use with: Copper pipe ...
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  • 128k
3 votes

Why do I have blue water coming out of the faucets?

We had blue water coming out of our bathtub faucet for a number of months. I talked to people at our local plumbing company. They had no answer. I gave up searching the blogs on the internet. This is ...
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3 votes

how do I remove copper stain coming from plumbing?

There are products sold for your specific issue. Check your local hardware store or home improvement center for CLR (Calcium-Lime-Rust) cleaner. CLR is a specific brand name but there are many ...
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  • 10.9k
3 votes
Accepted

How can I cut copper water pipe to add a fitting?

All depends on you. You can cut the pipe with a hacksaw, Sawzall, a copper tubing cutter like these: You might have to cut a length of pipe out to fit your valve. You could also use a piercing valve. ...
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  • 4,397
3 votes

What to use a 90 and when to two 45s in copper piping?

When to use a pair of 45° versus one 90°? Most in the construction trades work according to these guiding principles: Use as few parts as possible, because handling more parts takes more time Get the ...
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  • 19.5k
3 votes

Copper line to fridge

If you have a saddle valve clamp that is closed yet still letting water through, you may simply have to turn the handle a bit more with force to drive the pin tighter to the copper pipe. HOWEVER: If ...
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  • 31
3 votes
Accepted

is there a more clean way of installing a refrigerator water line?

Yes, since you are working on the walls anyway, you can install something like this box: Depending on the new layout of your kitchen, you can connect to a pipe coming up from below (through the floor)...
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2 votes

Does Pex tubing have any advantages over copper?

From comparing chart PEX vs Copper PEX tubing has much much better freeze burst resistance properties than copper. Its very important especially for people who lives in cold climate areas.
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2 votes

Does Pex tubing have any advantages over copper?

Get a pinch clamp tool, like this one, and a pipe cutter. Those are the tools you'll need. One tool works for all size pinch clamps. Copper has antimicrobial properties. Copper will oxidate and leak ...
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2 votes

Why would you use copper electrical conduit?

It's most likely something like Pyrotenax. Copper covered fireproof cable.
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2 votes

Are galvanised steel pipes suitable for supplying hot water?

Some plumbers and the posts above suggest replacing galvanized pipes should almost always be done. In my case, I believe that SOME of the replacement was a mistake. I replaced my galvanized steel ...
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2 votes

What type of copper pipe do I need for a typical LP gas range?

I'm not sure exactly where this pipe is, or how far back the pipe runs. Though most codes now call for a shutoff valve be installed for each appliance, in the same room and within 6' of the appliance. ...
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  • 128k
2 votes
Accepted

Corrosion on copper pipe: Is this a concern?

Clean it off with some wire wool. As far as I can tell, it looks like marking where flux has run and is unlikely to be any serious corrosion that warrants pipe replacement, but the best way to tell ...
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  • 2,360
2 votes
Accepted

Why multiple copper tubes joined together?

The joints are there in the wall as they can't occur within the slab. They split the main supply to the bathroom into branches for the sink, tub/shower, and toilet.
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  • 1,330
2 votes
Accepted

How to properly attach copper pipe to steel framing?

You use plastic bushings. I couldn't find a photo with pipe, but here's one with electrical: This gives you the benefit of separation of materials and also a 'slip joint' to handle the expansion/...
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  • 23.8k
2 votes

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

Yes, you can. In fact, this is exactly how anchor bolts are placed into concrete and stone for posts. A hole is drilled, filled with epoxy, then the bolt is inserted. Keep in mind that slate is ...
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  • 23.8k
2 votes

How to seal PVC-U and copper pipes together

I too have struggled with gluing copper and PVC for certain experiments. Silicone is an ok choice, depending on the pressure, but white silicone just happens to be less effective for sticking to stuff ...
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  • 6,064
2 votes
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Do I need to separately bond sections of copper pipe connected by push-to-connect fittings?

According to the SharkBite® Installation Instructions (PDF), you have to install a jumper to "ensure proper grounding".
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  • 128k
2 votes
Accepted

how do I remove copper stain coming from plumbing?

Vinegar should be able to dissolve copper stains. Those stains are commonly copper hydroxocarbonate AKA copper carbonate hydroxide, which easily dissolves into copper acetate.
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  • 222
2 votes
Accepted

Soldered copper vs threaded copper at shower valve

In all my years, threaded or soldered, I've never replaced a valve with the same valve, and definitely not with the threaded connections. If you think about the logistics of unthreading a shower valve ...
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  • 1,954
2 votes
Accepted

What threading type is my ice maker shut off valve?

One side of your needle valve is 1/4" compression thread, that is the side with tubing connected to it. The watertight connection is accomplished when the compression nut squeezes down upon and ...
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  • 33.4k
2 votes

What threading type is my ice maker shut off valve?

As @jimmy Fix-it said, I would just replace the valve or you could go to the "big box store" and ask for a 1/8" or a 1/4" female X 1/4 OD compression fitting. These are a standard fitting and easy to ...
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  • 12.1k

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