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Questions tagged [pipe]

For questions generally relating to hollowed out materials used to convey a liquid, gas, or other fluid substance.

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26 views

how much to tighten 1 inch NPT for water [duplicate]

Have a 1 NPT inch ball valve and associated hardware. How much should I tighten it? How do I know when I'm good ?
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2answers
82 views

How to cap this water pipe so it is flushed with the concrete?

The builder left this water pipe sticking out of the ground. How to cap it off so it is flush with the concrete? Otherwise the top off cap will stick out and create a tripping hazard or the plumber ...
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1answer
43 views

attaching a coupling to a copper pipe

I am trying to install a standing bottleless water filter in my house and the hoses beneath my sink are incompatible with the adapters that come with my filter. My fridge does not have a water ...
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2answers
67 views

how to drill aligned holes in steel pipe?

I need to accurately drill multiple holes in steel pipe (1.25-2" diameter, 65-100 mil wall thickness, about 10ft long). I need to drill a half-dozen or so evenly-spaced aligned pairs of holes all ...
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1answer
25 views

Losing pressure on cold side when other faucet is on

What I have is that when I turn on the kitchen faucet to warm while washing dishes and someone uses the toilet or cold water on another faucet then the kitchen faucet gets very hot. I am on city water ...
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0answers
12 views

Low cold water pressure

On Sunday night my pipes froze. When I woke up on Monday morning a pipe had burst in my well house area. I had a pipe fitter come out and fix it. Ever since then, I have low water pressure in both ...
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7answers
3k views

slow draining bathtub - is a frozen pipe a possibility?

Our bathtub has recently started draining very slowly (bathtub fills with water during a normal shower and takes a while to completely empty). This problem has coincided with winter, and I'm wondering ...
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0answers
30 views

How to adjust shower drain height after replacing shower base?

I just pulled out my shower base to replace with a completely new base. Now I have no idea if the height of this will fit: Few questions: How do I remove or cut this top piece? I assume (C) is the ...
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1answer
35 views

How to ensure shower handle flushed when replacing shower wall to tiled wall

I am ripping off my shower kit and the wall. Before demo, I took picture of the back of the shower fiberglass wall: I plan to install tile. What happen next is to put drywall and then hardie board ...
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0answers
34 views

How to calculate pressure loss on PEX 90-degree elbows?

I'm probably overthinking this, but I need to, as close as possible, determine how much pressure I'll lose with PEX 90 degree elbows. Had a new well pump installed (1 hp, 10 GPM), well guy is wrapping ...
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1answer
54 views

Can I screw a US garden hose into any standard threaded pipe?

Is a US garden hose connector any kind of standard pipe thread? So that it could be screwed into a normal, say, threaded iron or PVC pipe? I've tried a couple samples of what I had on hand and though ...
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7answers
2k 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 ...
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1answer
43 views

DIY copper lamp earthing

I'm planning on building a copper pipe based lamp along the lines of this: https://www.instructables.com/id/Copper-Pipe-Table-Lamp/ I currently have a lamp holder terminal of this brand: https://s-...
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1answer
39 views

fix broken water pipe in garage (burst in winter)

Last winter, the water pipe in my garage was apparently not emptied entirely and burst when the water froze. At least that is what I assume, because when I turned on water in spring, it sprayed out of ...
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5answers
1k views

How long will metal pipe last in earth and concrete

I'm building a fort for my kids out of wood, 8 foot by 8 foot and trying to work out how to make it last. I can't get treated wood, and apparently untreated wood rots within a year of ground contact ...
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0answers
68 views

What is this pipe?

I discovered a 12" diameter concrete pipe traveling vertically from the basement to the attic of a one story house. The pipe is lined both internally and externally with metal. I would like to know if ...
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1answer
39 views

How to fix a leaking pipe?

Kitchen pipe is leaking, I think I have identified the leaking is the red circle. I should not apply glue or any kind of sealant, should I? What if I tighten it with a spanner and it still leaks? ...
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2answers
108 views

Are there long pipes that either increase speed of water or at least do not decrease it?

I need a long pipe of almost 100 m for filling water into buckets at my home from municipal tap provided outside of my home. Many people have to share that municipal tap and hence a hose would allow ...
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1answer
50 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 ...
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2answers
35 views

What is the best way to semi-permanently seal and waterproof a pipe containing two cables?

So I have an outdoor water fountain and there are two cables that go from inside the water fountain through a 1" PVC pipe to a dry junction box outside. The cables are for a submersible DC pump for ...
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1answer
23 views

What type of Piping for Reduced Pressure Backflow Preventor for Irrigation System

Looking into installing a above ground reduced pressure backflow preventor for my irrigation system. Looking at many examples and videos online, I saw different types of piping from PVC, Copper and ...
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1answer
25 views

water heater - flow problem

got a new 3 liter instant water heater installed. When the heater is off, water flow is normal. When it is on, about one liter or so hot water flows and then there is no water. What might be the ...
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1answer
38 views

Should I replace amissing insulation over the heat tape on my water pipes?

I recently moved into a mobile home and with the temperature dropping below freezing I wanted to make sure my water line was protected. It has a electric heat tape wrapped around it with insulation. ...
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2answers
282 views

Garbage disposal drain is slightly higher than drain pipe

I bought an old house and this is the old kitchen drain setup: Frankly I never "tested" it before I remodeled the kitchen completely. The old kitchen has drop-in sink and now mine is under-mount. ...
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1answer
45 views

Fixing pipe/tube from dishwasher to disposal

Photos attached. This seperated today and caused a mess. I have no idea how this was originally connected. There is a copper pipe inside of a black tube. I believe the black tube was clamped to the ...
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1answer
42 views

Strategy for replacing leaky tub trap

I have a leak in the trap underneath my bathtub. Specifically, the leak is happening at the union nut of the trap (see red circle in picture). I have confirmed that the nut at the union does not ...
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1answer
388 views

Drain pipe P trap leaking under sink

I removed the P trap and pipe from the old kitchen and tried to reuse it for the new kitchen remodeling: However, it's leaking water at the connection from the white pipe to the metal P trap: I even ...
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0answers
41 views

160mm pvc pipe running through a deep concrete pour - will it crush?

I have am unusual situation. I had to use 160mm pvc pipe to create a wide duct for services connections that must pass about 500-660mm deep through a new footing that's about to be poured. The pipe is ...
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0answers
31 views

Laying down perforated pipe where a fence is to be built on top

I need to install perforated drainage pipe in a line where I have no choice but to put fence posts in also. Can someone advise on a method to ensure the fence post is secure, but the 6" perforated ...
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2answers
121 views

Where to turn cold water off inside the house?

This is somewhat a newbie question as I just bought this house. I assume design of plumbing must be common. So I wonder if I miss something. Below is the "green" valve to shut off hot water into the ...
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0answers
51 views

Connect washing machine drain pipe to existing outlet

I am trying to install a washing machine next to our boiler. I don't have an SDS drill so I'm trying to get away with not drilling a hole in the cavity wall. There's an existing hole through the wall ...
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2answers
82 views

Keys lost in a water evacuation pipe [closed]

I lost my keys right in front of my building, in a water evacuation pipe of approximately 7-8 centimeters of diameter. It goes vertically in the ground for about 1m and then bend to approximately 90 ...
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1answer
115 views

Is 1/2" flexible gas pipe adequate for a 22000 BTU clothes dryer?

I have 1” black iron pipe running just shy of 40’ to a manifold. The manifold then has one run of csst coming off it to my furnace. I then have 4 more ports I can run off for new appliances as I ...
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4answers
223 views

How to attach steel cable to threaded rod [closed]

I am trying to get an industrial look to a desk unit that has threaded rods (M20) at the corners, using steel cables. I want to get an 'X' using the cables, but not sure how to attach the cable end to ...
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1answer
49 views

Lost pressure after “clunk” sound in pipe

Kitchen sink faucet seems to drop to near trickle when the water is turned on full (Cold side ... Hot side has always run very slowly). This is not a new installation and there has not been any other ...
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1answer
37 views

can you use a pvc pipe cutter to cut waste pipe

When piping up the shower waste, it's inevitable you willl need to cut the pipe shorted at some point. When I was training to be an electrian, I used something similar to these to cut conduit. Would ...
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2answers
27 views

Proofing Heating Pipe Passage Way

I am living in a multi-family house which happens to be an old building. The person living under my room is a chain smoker. Unfortunately, the smoke is smellable in my room, even if I close the window ...
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0answers
31 views

How to identify what outdoor pipe is for sprinkler system?

I am planning to add a shut off valve from a hose bib to the sprinkler system. I am having some difficulty identifying what the pipe to the left (image below) is or what it does! Seems random - but ...
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1answer
52 views

How do I tighten an out-of-reach PVC pipe fitting?

A PVC pipe got pulled out of its fitting under my shower (don't ask!). It's been pushed back into position, but is out of reach by hand and not tight (causing a slow-drip). Above the pipe is a shower ...
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2answers
69 views

Best way to join two vertical aluminium poles

I currently have an aluminium (aluminum?) pole that's about 1"1/8 across, and it's embedded into concrete. I need this pole taller, and can acquire exactly the same spec pipe in any length to do this. ...
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1answer
118 views

Why would a rough in pipe be under the concrete?

I'm planning to install a three piece bathroom in the basement. We have 2.5" and 3.5" rough in pipes sticking out, while 2" pipe was fully in the concrete. I had to break the floor to see if it was ...
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0answers
937 views

Pipe Dope (or Tape) on a Propane Cooktop

I have a Koblenz propane cooktop in my cabin and it recently developed a gas leak. Here's a video of my soap test https://youtu.be/uhKAhUsWaUY. The manufacturer says I should use pipe dope (or tape) ...
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1answer
53 views

Reinforce aluminum pipe attached to wood posts in fence

I recently installed a fence where the posts are 4" x4" pressure-treated wood with an aluminum pipe rail, similar to this: fence and this, but without the wood rail: fence with wood rail I use a ...
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0answers
192 views

How can I finish a plumbing cleanout in my basement floor?

I am looking for some advice on what do with the main line cleanout in my basement. Currently, we have a hole in basement floor where the mainline and cleanout run. We plan on cleaning out the main ...
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1answer
31 views

Under Floor Heating (Wet) - pipe coupler under the screed?

I want to fit UFH to a whole house - normally it would be an easy process if one could just move out and live somewhere else as the whole house gets gutted and re-done. However, ideally, i want to fit ...
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0answers
29 views

dampness at threaded brass joints

I have 4 water outlets with taps put together with several brass joints all sealed with hemp and pipe compound. They are not dripping but there is still evidence of dampness when you put your finger ...
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1answer
65 views

Remove stuck tailpipe from sink

I want to replace my kitchen strainer and to do this, I'm trying to replace the tailpipe - but it's stuck. I was able to unscrew the nut all the way I believe. If you look at the picture below, you ...
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2answers
92 views

cold water too hot in AZ—worth it to insulate attic copper?

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 ...
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1answer
427 views

How can I cap off an old, partially-exposed cast iron pipe when a qwik cap won't do?

I'm trying to cap off an old cast iron pipe that's leaking in our basement. The pipe used to be connected to a downspout on the outside and to the sewer on the inside, but it's now disconnected on ...
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1answer
101 views

Join 2“ aluminum pipe between two 4”x4" treated lumber? [closed]

How can I attach an aluminum pipe to (2) 4"x4" pieces of pressure-treated lumber? The pipe would act as a rail. It would be like this: This is another example, but with a top rail: