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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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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 ...
Roricka's user avatar
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1 vote
0 answers
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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 ...
joe durkin's user avatar
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-...
Jeff C's user avatar
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0 votes
1 answer
32 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 (...
whiskeychief's user avatar
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/...
Kevin Schultz's user avatar
0 votes
1 answer
42 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,...
Mr. Jintendo's user avatar
0 votes
1 answer
22 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 ...
Chris's user avatar
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1 vote
1 answer
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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. ...
Billyboy 's user avatar
0 votes
3 answers
53 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 ...
gatorback's user avatar
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2 votes
0 answers
36 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 ...
Matt Pickler's user avatar
0 votes
0 answers
104 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 ...
Anton Polyakov's user avatar
1 vote
2 answers
132 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 ...
Hawk's user avatar
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1 vote
1 answer
125 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 ...
lemerita's user avatar
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. ...
highbandwidth's user avatar
0 votes
1 answer
116 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 ...
Frank's user avatar
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0 votes
1 answer
316 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 ...
5000fingers's user avatar
0 votes
0 answers
144 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 ...
Russ W.'s user avatar
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2 votes
1 answer
162 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 ...
msanford's user avatar
  • 629
0 votes
1 answer
140 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 ...
Theman81's user avatar
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 ...
mr blint's user avatar
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1 vote
1 answer
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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 ...
DOUG's user avatar
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0 votes
0 answers
65 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 ...
arcade321123's user avatar
0 votes
2 answers
565 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 ...
Marc J's user avatar
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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 ...
user176777's user avatar
0 votes
1 answer
258 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 ...
Han's user avatar
  • 97
1 vote
2 answers
253 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?
amphibient's user avatar
  • 7,515
1 vote
3 answers
355 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 ...
rtaft's user avatar
  • 803
2 votes
1 answer
333 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 ...
Morgan March's user avatar
-1 votes
1 answer
77 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?
juan goldner's user avatar
1 vote
1 answer
66 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 ...
User7391's user avatar
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0 votes
0 answers
47 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 ...
27560's user avatar
  • 1
0 votes
1 answer
535 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 (...
tubaman121's user avatar
0 votes
1 answer
428 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 ...
KRW's user avatar
  • 1
0 votes
1 answer
74 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 ...
tnebea's user avatar
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0 votes
0 answers
34 views

Use or replace chipped PVC fitting?

Replacing a toilet flange. Is there enough of the fitting remaining to cleanup and use or do I need to do a full replacement?
Austin's user avatar
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0 votes
0 answers
38 views

Where can I get a replacement for cracked window trim?

I cracked some window trim in my condo. Where can I get a replacement? It looks like PVC material but I'm not able to find anything at Home Depot. Is this because its commercial material or something? ...
Jay's user avatar
  • 1
6 votes
8 answers
3k views

Can I use a hole saw on PVC?

I have a glass house that encloses an above-ground pool. For gutters, they have used some silly system, where at the joint, the flow is restricted to a third of its capacity. It has a downpipe on ...
Rohit Gupta's user avatar
  • 6,508
0 votes
1 answer
286 views

Do I need a 90 degree elbow on this intake and would I need to cement it on?

There are two pvc intake/exhaust pipes on the outside of my house, and both of them don’t have an elbow on them. Is it bad to not have an elbow on the top of the pipe and what type of damage can occur ...
Zak's user avatar
  • 1
2 votes
1 answer
435 views

Help identifying ABS vs. PVC

I am working on a basement bathroom and need some help verifying that the existing shower and toilet drains are ABS or PVC. I know that should be easy but there are a few nuances and I want to be very ...
r_alanb's user avatar
  • 215
1 vote
1 answer
115 views

How can I identify the purpose and terminal location of a PVC pipe from my basement slab?

Our house has a 3 inch PVC pipe running from the basement to an unknown location in the house. It has no T or Y junctions connecting into it. It does NOT go into the attic. The only pipe into the ...
radonhelpplease's user avatar
2 votes
2 answers
925 views

Options for routing UF-B from exterior wall to interior load center

I have three 10/2 UF-B cables on an exterior wall that I'd like to route to my interior load center on the other side of the wall. I intend to bring the UF-B cables into the interior wall cavity and ...
stmp945's user avatar
  • 696
0 votes
2 answers
299 views

What adapters do I need to securely connect a garden hose to this frame in conjunction with the water pump's 1/2" MNPT output?

What I need: A secure way to connect a garden hose to a water pump using lead free adapters and/or connections. The pump output is 1/2" MNPT and is positioned approximately 3"-4" from ...
giuseppe's user avatar
  • 101
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 ...
drew's user avatar
  • 27
5 votes
1 answer
380 views

How can I repair an underground gutter drain pipe broken at the face of a concrete slab?

I can't use couplers because there's cement around the pvc pipes. Its cracked right to the curb. How do I fix it?
Bryan's user avatar
  • 51
2 votes
1 answer
259 views

My replacement sprinkler valve model does not line up with the PVC pipe

I found that my above ground replacement sprinkler valve is not a perfect match for the existing pvc pipes. The pvc pipes are 1/4” too close together. I dug down along the pvc pipe to expose the pipe ...
Diy didi's user avatar
-1 votes
2 answers
664 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 ...
Michael Steele's user avatar
2 votes
0 answers
325 views

Will my vent siphon the bathtub P-trap?

We're modifying our bathroom by moving a shower and bathtub around, but we're having trouble working around the limitations of the space. For some background, we're in Florida and are governed by the ...
Kyle's user avatar
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0 votes
0 answers
88 views

How should I relocate drain lines as I remove a bathroom wall to make room for a larger bathtub?

My wife and I have started on a project to renovate our master bath. We're pretty comfortable on most home projects but moving around drain lines isn't something we have a ton of experience in so I'm ...
Andrew Bernhagen's user avatar
1 vote
1 answer
223 views

How to repair and clean up from sewage drain leak

Last night I went to store some things in my crawl space and discovered that a joint in the drain line from the sump pump out to the city sewer line had become disconnected (see photo; this is a 2004 ...
aknodt's user avatar
  • 461
2 votes
2 answers
269 views

Uncoupling glued PVC joint [duplicate]

I must repair a busted 2" PVC pool pipe. I have cut out the section of pipe that is broken due to the winter freeze. Is it possible to break the glued joint and what is the method? I was ...
Patrick's user avatar
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