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Questions tagged [pvc]

Polyvinyl Chloride(PVC) is a common type of plastic pipe, used for both plumbing as well as electrical conduit. Use with the [plumbing] or [conduit] tags when your question is specific to this type of pipe.

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1 answer
47 views

PVC in wrong location need to transition from there to around the corner to subpanel [closed]

There was a 1" and 2 3/4 PVC ran to the wrong location they brought them up on the front corner of the house about a foot away from the edge . The subpanel is located a foot and a half from the ...
-1 votes
2 answers
41 views

Best method to add a tee to AC drain line

I want to add a tee coupling to my existing AC drain line to accommodate the drainage of newly added dehumidifier condensation water. I did some research myself and debating between using a saddle tee ...
1 vote
3 answers
9k views

How should I patch up cinder block hole with plumbing?

(followup question to Why is this Ptrap installed in this location?) Here is the hole that I want to patch up: As you can see, it is a cinder block wall with concrete foundation with a new PVC drain ...
1 vote
0 answers
86 views

Can I run cable through a wall into a surface-mount box?

I have a surface-mount (1/2” PVC conduit) receptacle in a metal box. Does NEC allow me to run cable through a rear knockout of this box through a wall to wire an adjacent room? Not exterior. Interior ...
1 vote
1 answer
3k views

How to properly insulate PVC water pipes outside?

I live in Houston, and I'm trying to re-insulate my external pipes, which are a mix of PVC pipes and fittings and brass valves. Most of my fellow Houstonians use foam polyethylene insulation and duct ...
7 votes
1 answer
2k views

Accidently Glued PVC to threaded PVC and it Leaks

I am very new and I accidently glued an elbow to a threaded piece of PVC. Yes, I know that was dumb, lets move past that :) Its leaking. Any idea what I can do to stop the leak? It has to be an in-...
1 vote
0 answers
53 views

Do i have to bury electrical PVC conduit from house to generator? i need to go about 5 feet from corner of house

i need to connect my new generator to electrical and natural gas. the generator is about 5 feet from the corner of my house. Do i need to do the electrical underground or is just 1 foot above ground ...
0 votes
1 answer
36 views

'DWV' PVC pipes ~ Is it ok to have an open inlet in the basement?

Our basement has a openings in the PVC drain-waste-vent (DWV) system, for a washer and water softener to drain. I just realized there's no check valve on this or anything to prevent a sewage backup (...
1 vote
0 answers
26 views

Mysterious washer leak

I am trying to remedy two washing machine leaks, one mysterious, one not so mysterious. First, the not so mysterious leak. When running a large load, water backs up and spills out the top of the box/...
0 votes
1 answer
43 views

Where is the best place to cut and rebuild my bathroom drain pipe?

I am remodeling my bathroom. I'm at the point of fitting the drain in. They glued all the PVC together up to the ABS. Where would be a good place to cut? I've marked in the photo where I am thinking,...
1 vote
1 answer
56 views

Is a PVC Coupling Reamer Effective?

In my area code allows me to keep my 1 1/2 inch drain for new shower which I thought would save a lot to not have to cut out the stack and replace the wye to the toilet and present bathtub drain etc. ...
0 votes
3 answers
63 views

Can plumbing PTFE tape be used between PVC and metal?

A metal shower drain: is screwed into a PVC drain pipe. It was very difficult to remove: presumably because of the plumber's putty. Is PTFE tape effective? or will this cause problems. The hope is ...
3 votes
1 answer
142 views

Can I connect a vent pipe from a defunct waste drain to a different, active waste drain pipe instead?

My goal is to remove as much defunct plumbing as possible. My scenario is: Former sink in basement (removed), drains to septic under slab Current sink in kitchen, drains to septic through long pipes ...
2 votes
0 answers
37 views

Wax around PVC pipe connections

Has anyone ever encountered wax that was applied around the exterior of PVC plumbing pipe joints? Our basement has two stacks that have what appears to be the wax you would apply to a toilet flange ...
0 votes
0 answers
162 views

What type of pipe should I use in my drain/leach septic field?

I have an older house and its septic somewhat failed. Leach field pipes were not glued and they all disconnected immediately after d-box so that none was going into the field. These are also very ...
3 votes
5 answers
25k views

Should you chamfer CPVC pipe before gluing?

In know that PVC should be chamfered and even lightly sanded before gluing for better insertion on the fitting (and probably some other reason). What about CPVC, a manual told me to just cut, apply ...
1 vote
6 answers
166 views

What type of 1" electric valve can I use in a line with no pressure? [closed]

I am looking to attach two 1" valves to a drainage line I have coming from my gutter. I would like the option to select which channel the rainwater flows down, using valves. My hurdle right now ...
1 vote
2 answers
138 views

Extending the exhaust pipe of my furnace

I am seeking advice on a potential modification to my furnace setup. Currently, the exhaust PVC pipe outside my house is situated too close to my windows and AC, prompting me to consider extending it ...
1 vote
1 answer
99 views

How can I connect Schedule 40 PVC to Type C pipe?

I need to extend some 4" PVC drainage pipe. The problem I'm having is that the existing pipe is "Type C" ("tele-duct"). It has a slightly different outer diameter (4.350") than a typical PVC pipe (e....
1 vote
1 answer
161 views

Leak in PVC coupling

I found a water drip leak on both edges of a 3” PVC pipe-coupling located over my basement ceiling. The pipe runs horizontally above a bathroom closet with another PVC pipe running just adjacent and a ...
3 votes
4 answers
7k views

Is Schedule 80 PVC pipe suitable for water main connections?

I'm helping a neighbor who is out of town. As luck would have it, the water main pipe they just had installed less than 4 days ago cracked and started leaking. When I checked it out I discovered that ...
2 votes
3 answers
47k views

How should I repair mounting holes drilled into pvc window frames?

A previous owner had drilled holes into the pvc frames to fit blinds, which have since been removed leaving small holes. I'm not expecting pvc can be filled flawlessly, but what would be the best ...
12 votes
1 answer
1k views

Can you identify the source of these grooves/notches on the edge of the deck?

I have a nice new PVC deck ... BUT, these strange notches/grooves have begun to show up on the outside edge of the darker colored border plank. These were NOT here when the deck was first installed. ...
0 votes
1 answer
139 views

How do I transition from a Romex wire in a plastic box to a weatherproof box?

I am a new homeowner and am relatively handy. I have worked in building maintenance at a hospital, but I am not entirely familiar with the electrical codes. I was meaning to replace a faulty outdoor ...
0 votes
1 answer
367 views

How to connect PVC to corrugated

I am reconfiguring some of my water drainage, and wondering how to make some of the connections in the pipes that will share the same ditch. My plan is to run 4" corrugated perf pipe at the ...
0 votes
0 answers
164 views

How to install a P-Trap with no offset and minimal horizontal travel

Hey professional plumbers (of which I am not). I am looking to replace the P-trap on a new kitchen sink install but I'm running into issues with the spacing for the p-trap. We are converting from a ...
2 votes
1 answer
171 views

Air exchanger drain hose replacement - PVC/pex ok? Vent ok?

My air exchanger drain hose in a recently purchased home (in Québec, Canada) has mold growth, is kinked, sags below the drain mid-way and obviously needs replacement. The PVC at the left is the excess ...
-2 votes
2 answers
1k views

Detecting concealed PVC water pipe with ultrasonic sensor

I'm planning to install some glass shelves in one corner of my washroom. The problem is, there are some plumbing pipes snaking around underneath the ceramic tiles and I risk punching holes while ...
0 votes
1 answer
153 views

Should I replace the whole thing? PVC under sink

looking to replace my p trap system under the kitchen sink. It’s old . The actual pipe that suppose to curve up to the sink drain is rotted under so I need to unscrew the nut and replace it . I prefer ...
0 votes
1 answer
141 views

Cannot open uPVC Window

Moved into a new house and a (fairly new) uPVC window will not open. I can unlock the the handle and it does not seem stuck -- but it will not open. It seem like something in the frame is stopping the ...
5 votes
4 answers
2k views

What kind of tubing comes with a kitchen sink sprayer?

I need to replace the water supply tube on a concrete/masonry saw. It is rather too flexible and easily kinks and has developed a pinhole leak at the kink after only a few weeks of light use. Now, we ...
1 vote
1 answer
99 views

Can I use grey PVC to go from breaker panel to underground run to hot tub?

I want to run grey PVC schedule 40 conduit down the wall from my breaker panel outside and through an 18 inch deep trench back to my hot tub. I'll terminate the conduit at a Cantex box at ground level ...
1 vote
4 answers
3k views

Best way and best tool to file sch. 40 PVC

So I'm doing some DWV plumbing, and I'm close to being finished with my project. I'm looking for advice on the best way to clean up and chamfer PVC sch. 40 pipe (I'm mostly using 1-1/2" and 2&...
0 votes
0 answers
68 views

Redirect plugged gutter downspout drain

The rear gutter downspout drain at the back of my house is apparently clogged (or crushed, or overgrown with roots). The previous homeowner said a nearby window well flooded due to the overflow and ...
0 votes
2 answers
681 views

When to use PVC cap vs plug

I am planning to cap off some sprinkler lines. I found the PVC line that leads there. I was watching some YouTube videos to find out what I needed to do and I see some that use PVC caps with PVC ...
0 votes
1 answer
71 views

What are these 2 black pvc pipes with wire

I have 2 black PVC pipes in my side yard. One is capped and the other is uncapped with a wire looped around the capped tube. I tested the wire with my voltage tester and multimeter and got nothing to ...
0 votes
1 answer
284 views

MNPT/MIP confusion - PVC pipe to frost free (freeze resistant) sillcock/hose bibb

Short version: -I am interested in hearing your thoughts on how best to install a cold-weather sillcock/hose bib & I am running into some MIP/MNPT uncertainty. -Situation: I can find an adapter ...
1 vote
2 answers
304 views

Primer type for exterior PVC lumber

I have exterior PVC lumber (e.g. Azec) as brick molding and would like to paint it. Should I use regular water based primer or oil based like with metal surfaces?
1 vote
3 answers
418 views

How do you keep a flexible rubber coupling from popping off?

I have an effluent tank with a 2" pipe to the leach field about 200 feet away, and a 2" sewage pump. I went with a 2" rubber coupling and 2" PVC and check valve mainly to allow ...
1 vote
1 answer
2k views

Can I replace a section of copper pipe with flexible PVC?

The valve at the end of the supply line for my ice maker started leaking from that top. In trying to remove the valve, I twisted the copper supply line. The section of pipe is 6 inches, and the ...
2 votes
1 answer
351 views

2020 NEC: Proper installation of PVC Conduit for Data Cables

I am installing a media enclosure in an under-stairway closet on my first floor. I plan on running Schedule 40 PVC conduit between the enclosure and the crawlspace directly below, as well as between ...
-1 votes
2 answers
763 views

Set pipe inside sch-40 PVC to use as post for sun shade

Years ago I put a 2" O.D. 20' flagpole inside a 2" sch-40 PVC pipe which was set in concrete. The 2" flagpole fit perfectly inside the PVC and it has been through 50-60 mph winds and ...
1 vote
2 answers
2k views

How can I complete these repairs to my sprinkler system?

I have two (hopefully small) repairs that I need to do for my system. Luckily most of it is in a control box, so it is easy to get at. Here's the setup: At the top was a valve that was broken, and at ...
-1 votes
1 answer
88 views

Small water leak where PVC meets copper

I have a small leak at where the pvc joins the cold water copper flex pipe of the water heater. How can I fix this?
1 vote
1 answer
71 views

What is the lifespan of PVC pipe in an open loop?

I have an open loop geothermal heat pump. It takes well water and using schedule 40 PVC, sends the water throughout the house to air handlers and then back out to an injection well. The PVC carrying ...
0 votes
0 answers
48 views

How do I drain my softener, RO, and acid neutralizer with limited space & vent it properly?

I recently installed an acid neutralizer, water softener, and reverse osmosis system in my garage. I have it draining through the wall into my crawlspace tying into the main 4 inch drain line. I have ...
0 votes
1 answer
579 views

Do I need to use Schedule 40 or 80 pvc conduit for exposed sections outside?

I've been using 3/4" schedule 40 PVC for three 6-gauge THWN wires coming from the main house panel, exiting the house to the outside and into an 18-ft. deep trench, and leading to an EVSE (...
0 votes
1 answer
448 views

Tankless gas water heater exhaust pipe

I installed a tankless gas water heater about 18 months ago. I used polypro for the exhaust pipe as I understand the MA code to require. The polypropylene exhaust pipe extends something like 12 inches ...
0 votes
1 answer
77 views

need help identifying an outdoor drain

We just got into a new house that's built into a hill. Can anyone tell me what these are? I think the dark drain is part of a french drain, but near that is an open PVC pipe that's pretty much just a ...
3 votes
2 answers
6k views

how do you replace a pool pump where PVC installation is coupling to coupling?

I want to replace my pool pump, and my pool system installers built a system where there is no room for one to make a splice. There is not one section of pipe exposed greater than 3/4" where I would ...

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