Questions tagged [pipe-fitting]
32 questions
19
votes
2 answers
Why not put pipe dope on female thread?
What is the risk of having pipe dope in natural gas line? Not blobs of dope, but a thin layer or bead on inner (female) thread.
Most instructions on using pipe dope on gas pipe says to put pope dope on male threads with no reference to female…
codechimp
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5
votes
2 answers
Why can't I find a cleanout plug to fit my drain pipe?
Trying to cap a water line that connects to my sewage out line. I purchased a cleanout adapter with cap in 2" and 3" and one is too big and one is too small. I think I need a 2-1/2" connector.
NOWHERE in my local brick-and-mortar stores can I find…
Stanley Jones
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5
votes
2 answers
How do I connect my sink to the drain in the wall?
I'm a real novice when it comes to plumbing. I've got a threaded 45 coming out of the wall (white pipe on the right) and an unthreaded black tailpiece coming down from the sink. How do I install a P-trap in this situation?
The new sink is…
Michael Mior
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3
votes
2 answers
How is this sewer vent pipe meant to be capped?
My house is connected to public sewer. There's a ~100ft setback between the house and the road, and in that area, there are two pipes I think are associated with the sewer. One is a white pipe coming out of the ground near the road that is well…
cr0
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3
votes
1 answer
Draining into open pipe in basement
When I bought my home, the basement dehumdifier hose was just draining into an open wye off a drain pipe in the floor which also goes up to the kitchen sink drain. Since then, when I had air conditioning installed, the installer also put the drain…
Michael Mior
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3
votes
2 answers
Where is the one-eighth in 1/8-27 NPT?
Where is the "one-eighth" in 1/8-27 NPT? I know it has 27 threads per inch. I see references that 1/8" is the nominal pipe size, does that mean the hole inside the thread is 1/8" ID? Or something else?
kbyrd
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2
votes
1 answer
Having issues fitting 1-14 UNF threads from a gas cylinder
I'm working on a DIY system at home that involves parts from different locations and industries, which means I'm running into many thread adaptor-related issues.
I have a gas cylinder that I'm trying to attach something to (I have the cylinder as…
J H
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2
votes
1 answer
Need name for handbasin fitting and sizing advice
I'm a newcomer to household plumbing and particularly have problems with the correct names for fittings etc.
We have a leaky cloakroom handbasin. Directly on the basin outflow the ceramic is connected to the U-bend piece with a tatty rubber ring and…
PotatoCrisp
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2
votes
1 answer
Why one faucet of the same make and brand tightens up to an upside down angle?
I fitted new nozzle bibtap(same brand) onto new bibtap wall flange(same shop). I used PTFE tape, with Pipe joint lubricant(could not source Pipe joint compound), on both fittings. One fitted vertically, but the other, will not turn beyond what is…
Abu Galib
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2
votes
2 answers
What is this elbow joint pipe?
This elbow joint is leaking. I think it’s the condensation pipe off the boiler because it seems to leak when the boiler comes on. I’ve tightened it fully but still leaking.
The pipe on the left (white) measures 21.5mm and the grey pipe coming out…
User1
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1
vote
1 answer
Stainless steel NPT + Brass NPT = not a perfect fit?
I just completed laying irrigation piping (black poly) and by and large it seems solid. I do however have issues with the take-offs from my house's hose bibs, where I have metal risers going into the ground to meet the poly underneath. The "risers"…
Paul W
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1
vote
1 answer
What is this fitting called?
I have a 1/2" female connector and need to know the name of the corresponding male fitting. The female is one end of a 3' water supply line for a bathroom faucet. I want to buy a 1/2" male fitting for it but I do not know what words to put into a…
Yehuda_NYC
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1
vote
0 answers
How do you connect things to 1/4" PEX?
I'm currently doing research on an upcoming major re-plumbing project, and have run across a bit of a mystery...
Lowe's sells these riser supply lines (faucet version, toilet version) that are described as being PEX. I was thinking about using a…
jasonharper
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1
vote
1 answer
What pipe fitting do I need?
I just had a kitchen remodel done, and as part of that a plumber added a dedicated water valve for my espresso machine (see picture below). However, I can't seem to find any couplings that fit on this thread and the other side.
The hose that came…
peter
- 835
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1
vote
1 answer
Are Compression Couplings for Galvanized Steel Good for Long-term Repair?
Not a plumber. Did swap out some elbows on 1/2" steel water supply with some unions, couplings, and threading what I cut out. But I noticed there were compression fittings like this on sale at the big box. It would have saved me some threading work,…
J D
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