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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46 views

What to call a fitting that helps quickly release two PVC pipes?

I have a hose that I need to attach to some PVC, but needs to be removable for maintenance. I found some threaded PVC ring, which I can glue to either side, that allows for it to be separated, the ...
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58 views

Frozen PVC pipes in Texas

I have frozen water pipes and I poured boiling water down the bathtub drain and now have a small amount of hot water coming out cold water tap. What could cause this?
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How can I prevent frost buildup on a concentric water heater intake?

I have a hot water tank with a concentric PVC vent that's both an intake and exhaust for the tank. Whenever it's -30 celcius and below (I'm from Canada), the air intake on the concentric vent clogs up ...
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Small leak has appeared in a PVC drain pipe joint, how to seal?

I have attached a picture of the joint, and circled the bit that is leaking, a small hole. What is the best way to go about sealing this up and fixing it? Thanks.
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23 views

Ensuring a down pipe attached to a wall stays elevated above the ground

I have a downpipe that I noticed was full of water. When I lifted it up, all the water started gushing out. The attachments had come off and it had slipped down leading me to believe it was sitting ...
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Can Schedule 40 PVC refer to non-Rigid and Rigid or uPVC pipe (for food safety)?

From what I read, "regular" PVC is not for food applications. You have to get uPVC or Rigid PVC (same thing I believe.) But I can't find it anywhere. Is Schedule 40 the same across Rigid ...
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1answer
38 views

Do these look like good PVC exhaust and intake termination ends for a new tankless gas heater?

I just had a new tankless gas water heater installed, and it seems to be working well. But looking around here, other sites, and my own HVAC system, the terminating ends seem to come out further from ...
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1answer
39 views

Can I extend my sump pump outlet and dig it down in the ground?

I attached an image of what I want, but essentially the water pools 6 feet from the house and ends up creating a swampy area for my dog to run though right out side the door. Can I add a 45 degree and ...
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5answers
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Is an ethernet cable threaded inside a metal conduit is more protected from electromagnetic interference? [closed]

I am at the end of a renovation, and only now  I discovered that it is not recommended to run ethernet cable in parallel and closely to power cables, even if they are in separate conduits, but I may ...
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2answers
37 views

Does the combustion air inlet for a 95% HE furnace need to be sloped down the same degree as the exhaust?

I'm determining if existing 2.5" PVC furnace vent pipes can be moved inside an existing soffit box in my garage ceiling. To do this the exhaust outlet pipe could keep it's existing grade from ...
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68 views

How can I store PVC pipe in the sun and prevent UV degradation? [closed]

I handle the PVC pipe storage system in the yard for my company. The yard is a totally open area and pipe is directly exposed to sun light. In the summer the sun is high and due to this lots of pipe ...
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2answers
144 views

Basement rough-in PVC drain pipe is not centered with stud

Our basement rough-in PVC drain pipe is not centered with the wall studs. It is not a load bearing wall since it's a newly framed wall (wall can no longer be moved). We now have to extend the drain to ...
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99 views

Can I run conduit through a retaining wall?

I have a terraced backyard with 3 retaining walls, each about 4' high. One is poured concrete, the other two are wood (PT 3x12). I am looking to add some outlets to the backyard from an existing ...
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4answers
96 views

How do I remove this drain pipe from my garbage disposal?

I found a leak in my garbage disposal, and I think I know the source (possibly a crack in the drainpipe). However, now I'm stuck on how to actually take off the drain pipe. The disposal pipe (3 in the ...
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11answers
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How can I cut this recessed PVC pipe?

The top of this pipe is gouged where it needs to seal with the new shower base. I need to trim off a few inches from this pipe so I can glue on a clean piece. the hole is 10" square. The pipe ...
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65 views

Is there a Plastic Barb to PVC Pipe pipe fitting?

I'm using this Diaphragm Pump that I bought online for a certain project, and I want to attach the inlet and outlets of this diaphragm pump to a PVC pipe. I think that Barb Outlets are supposed to be ...
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880 views

garbage disposal relocation

Complete newbie to DIY-ing as well as Plumbing. My wife and I decided to upgrade our kitchen sink and we chose a single basin, 9" deep model. I've been reading a lot on plumbing best practices ...
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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&...
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Why is Schedule 80 conduit not available at home improvement stores?

Perhaps this is common knowledge, but I just found out that standard home improvement stores (HD, LO) do not carry Sch 80 conduit. I was always under impression that they would, and they even list it ...
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109 views

Will my DIY wood and PVC cat cage hold up?

I'm a total amateur, looking for feedback on my plan for a DIY wood-and-PVC cat cage before I build it. CONTEXT: My cat injured his spine and needs cage rest. However, he anxiously scratches the mesh ...
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Window casing upgrade to plastic/pvc/vinyl/aluminum

I Just had two rooms added to the house, and I totally forgot to mention in the contract that I wanted the window casing to be plastic. (window frame? The internal part that encases the window ...
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1answer
968 views

Can I just cover PVC pipes with elbows with soil underground?

I had a leak in my piping, I fixed it and I'm going to cover it with soil. My concern is that somebody can walk over this spot when it's underground. Can pipe elbows break in that case and how can I ...
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397 views

How to connect liquidtite to schedule 80 (or 40) pvc conduit?

I'm running 3/4" Schedule 80 PVC conduit above ground for some backyard electrical. There is a section where I need to go up a retaining wall to a receptacle box, and then back down to continue ...
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Can a PVC sprinkler pipe that is encased in concrete have restricted preasure due to the concrete?

A metal post was installed in concrete for a fence. There is an existing PVC pipe that controls the sprinkler that is now in-cased in the concrete that was poured for the post. Can the concrete that ...
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1answer
81 views

How would I connect rigid pvc to a flexible hose for a drain

I've got two pvc drain pipes in our basement that I'd like to route to the drain. Right now they're pouring out on the floor which is not great. The large pipe says it's a 2 inch pvc pipe (though I ...
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How to attach PVC pipe to 1-1/4" metal/lead pipe

I'm trying to attach this sink trap to the wall drain which appears to be an old metal/lead pipe. The old trap was attached using a flex rubber coupling, but because it's not a shielded one, it is not ...
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86 views

Is there any way I can repair this PVC/conduit that carries sprinkler system wire from the ground into my garage?

On the summer sun side of my house there is a small section of PVC that routes sprinkler wire from the yard into my garage where the rain bird controller is. After a decade or so of summer sun and one ...
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1answer
31 views

Glue for internal rubber seals on uPVC windows

I have some double glazed uPVC casement windows, the interior seal around the sash has come loose in some places. Unlike some other windows, these seals don't clip into the uPVC profile, but are ...
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109 views

Acceptable to add knockout to PVC conduit body?

I have a 1" PVC LB Conduit Body passing through a wall into the electrical panel (the conduit body ultimately leads to a SPA pack). I'd like to add a 20amp receptacle on the opposite site of wall ...
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1answer
318 views

Code requirement for burying electrical PVC that runs along foundation

I need to run a circuit to the opposite side of the house from the service panel to an AC disconnect box. From my understanding this could be run with THWN wire in Schedule 80 PVC above ground if it's ...
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1answer
122 views

Does code allow flexible PVC for drain through joists?

I need to run a drain line for a sink through a multitude of joists. I could certainly cut 16" pieces of PVC pipe and use couplers to join, but, the numerous joints seems like an excess of places ...
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1answer
254 views

Vertical direction of PVC tee used for vent only

If a PVC tee is used to drain, where the flow of fluid is descending, it is obvious it should be positioned (T pedestal slightly pointing) upwards. But if the piping segment is used only to vent, with ...
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66 views

Would I have flow issues if I hookup a 1hp sump pump along with a 3/4hp sump pump with a wye?

Backstory. I own a home that has a driveway that slopes towards the garage. The garage has a grill in front of it to catch all the excess water drainage and dump it outside the house, I presume to ...
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1answer
746 views

How to open a PVC ball valve with a broken handle, stuck closed?

When attempting to close a valve to change the property-wide water filter, the valve closed but the plastic handle broke off. I tried to open it again with a wrench but the bit of plastic it was ...
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2answers
594 views

How to unfix a pvc tube glued to another pvc tube?

I have the following drained pvc tube pipe. As you can see from the picture below, I want to detach the part that I've circled in green (the upper part). The pvc part has been glued. After many ...
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38 views

Running power to a sub panel for a shed

So a friend of mine wants power to his shed for a tv, a small portable ac unit and some lights. I told him a 60 amp sub panel would be best just in case of expansion. So the issue is that from the ...
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1answer
91 views

Minimum vertical pipe height under kitchen sink drain

Is there a minimum height that the pipe directly under the kitchen sink drain needs to be, before it bends (in my case to the left)? Here is a picture of what I have (first image), and then a picture ...
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2k views

A 1“ T fits the pipe and a 1” valve does not, why?

Both of these are labeled 1". The T on the left fits the little bit of grey pipe. The valve on the right is too small. What am I missing?
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Is a double elbow code-compliant for merging two residential drains?

I'm working on a project where I have two fixtures coming in from the left and right, and then the waste water exits downwards vertically. My question: Is a 1-1/2" PVC double elbow for this up to ...
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1answer
58 views

Fix leak in toilet drain pipe

I have a leak in a toilet drain pipe that you can see below. The horizontal brown line is where the leak is and it was caused by a metal support strap that was wrapped around the pipe. Is patching ...
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27 views

Extending pvc drainage pipe that's “type c” (tele-duct)

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....
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473 views

what is the correct procedure to 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 ...
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Is PVC ventilation duct safe for health in long term? [duplicate]

Some contractor says PP is safer (the arguments is it is used in food packaging...) and PVC will degrade and release toxic materials after 10+ years. But in http://en.wikipedia.org/wiki/...
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1answer
68 views

How to uninstall this tricky P trap?

I have trouble replacing this kind of P trap as shown in the Figure below. Different from a normal P trap (e.g., here https://i.stack.imgur.com/W7MWn.jpg ), threre is no such "wrench stuff". I ...
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1answer
75 views

What material is my waste stack made of, and what can I do with it?

A number of years ago I had a plumber out who told me what type of waste stack this is, but I've since forgotten, and cannot find info online. He indicated that it should be replaced eventually (of ...
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2answers
81 views

10' PVC Schedule 40 vs ABS sun sail support post. Life expectancy, wind and UV damage

I'm setting some 6' T-posts deeper then usual ( down to like 4') for a simple fence project and i have a few spots where i want set up sun sail triangle from 10' high to 8' in about a 15' x 15' area. ...
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1answer
31 views

Remove 1.5” spa pipe fitting from PVC pipe WITHOUT damaging pipe

Have a 1.5” compression collar for a spa circulation pump. Whoever installed it crushed the shoulder behind the “O” ring. Need to remove it without having to buy a “pipe parana” for $140. Have to ...
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After repairing pcv pipes on my water line I have very little water pressure. 1/2 pvc pipe ; no leaks just no pressure

I repaired pvc pipe with new fittings ; no leaks ; but I now have no water pressure. 1/2 in pipe
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2answers
2k views

Two check valves in a series on discharge pipe

Is there any downside to having two check valves in series? I'm installing a new sump pump that came with a new check valve. Several feet from the sump pump, there is an existing check valve on the ...
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3answers
157 views

Clamps for cutting PVC or other circular objects

This is about as simplistic as it gets... They make wood clamps, C clamps, etc, for securing objects with a flat surface that you are about to cut. Whether it's a circular saw, sawzall, jigsaw, ...

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