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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2answers
173 views

Waterproofing between wall and new sink vanity

We just installed a new sink vanity and there's a roughly 1 inch gap between the bottom of our mirror and the top of the sink where the wall is exposed. We'd like to protect the wall back there from ...
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1answer
38 views

Hot and cold 1/2 pex, straight run for outdoor shower, pvc 1.25 is that too narrow for both runs.?

Outdoor hot and cold faucets, idea was to attach 1/2 pex to faucets and run through 1 1/2 pvc piping about 12" under ground for an Outdoor sbower, before pavers are installed. Both pex lines ...
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2answers
680 views

Removal of toilet flange in bathroom remodel with subfloor replacement and tile installation

I had a leaking bottom seal for my first floor half bath toilet, buckling linoleum tiles. I took up the linoleum and 0.7 in composite board that sits on the primary subfloor. As part of this ...
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1answer
21k views

Can I put concrete over PVC pipe?

I have my laundry room in the backyard and there is an area that had a thin piece of concrete and below it there is soil. Beneath the soil there lies the drainage PVC 1 ½” pipe, gas line (not ...
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1answer
35 views

Water leak at outside copper-PVC pipe connection

The water supply to the irrigation system includes a connection between copper and PVC pipes, located a few inches above the ground. The PVC pipe connected to the copper pipe (blue in the picture) ...
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2answers
436 views

Can I connect a 90 degree tee to my plumbing that goes straight down?

I currently have a kitchen sink on the first floor which leads to a vertical pipe (illustrated in black). I would like to connect a bathroom sink to the same vertical pipe (illustrated in orange). Can ...
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2answers
2k views

Is it safe to use Category 1 80,000BTU furnace with 2 inch PVC exhaust?

A contractor just finished installation of new HVAC system with a category 1 furnace (model: GMES800805CNAA). He originally used a reducer to connect 4 inch exhaust to a 2 inch PVC pipe. He claimed ...
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1answer
62 views

Can I put anchor bolts in concrete in PVC forms?

I am thinking about using 2 foot sections of 4" PVC buried in the ground as form for concrete piers or deck posts to support the bottom frame walls of a shed. The pipes will be buried in the ...
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2answers
74 views

Way to patch pinhole size hole in black pvc drain/vent pipe

I accidentally drilled through my drain/pvc pipe while installing baseboard. It was right behind the drywall. I used trim screws and it barely went through. There is a pinhole size hole from what I ...
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2answers
1k views

How can I protect my underground sprinkler PVC pipe from tree roots?

This is a follow up to a previous problem I had here: PVC Pipe for sprinkler system broken in multiple places Does anyone have any suggestions how I can install underground PVC pipe and protect it ...
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103 views

How do I remove broken sewer cleanout cap?

We accidentally mowed over the sewer cleanout cap. How do I remove this broken cap using tools that might be available in most households? Or by spending the least amount of money on new tools?
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1answer
56 views

Bathroom p-trap 2in male to 1 1/4 in drain outlet

I am trying to replace pipes and trap in my bathroom sink. For some reason the drain is connected via a 2in male threaded pvc pipe. On the other end I have a "standard" 1 1/4in metal pipe (...
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4answers
18k 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 ...
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1answer
48 views

Should an underground HDPE gas line be sleeved in PVC?

I'm building an outdoor BBQ island with a natural gas grill and side burners. My building inspector and I came up with a plan. I'm going to rough in the gas line and pressure test it and then I'll ...
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3answers
10k views

Is there a way to fix a small water leak in a PVC pipe from inside the pipe?

The PVC evacuation pipe from my toilet is leaking a little bit. The part of the pipe that is leaking is buried inside concrete. I am trying to find a way to fix the leak from inside the pipe, that is ...
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1answer
54 views

How do I fix a leak in my sink's drain pipe? [closed]

Started facing a water leak issue on pvc pipe under the bathroom sink. I am new to this and never fixed this before. How do i fix this leak ? Any help will be greatly appreciated. Thanks.
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1answer
57 views

threaded pvc to female brass. What should I use on threads?

I am extending an existing 1" PVC water line from my well to a yard hydrant. I am using PEX-B pipe and brass fittings. One end will be connecting to an existing 1" PVC pipe using a Threaded ...
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2answers
78 views

Irrigation Zone Off When Should Be On, On When Should Be Off

I have been replacing irrigation lines, switching from buried black poly lines to buried PVC pipes. Summary When I open Zone 1 (for sprinklers), the nothing happens. When I open Zones 2-5, then Zone 1 ...
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4answers
17k views

How can I join PVC pipe in a food safe way?

I want to close a rectangular vertically mounted pipe with a piece of flat PVC plastic. I will use the pipe for growing herbs on the wall outside my house, so it needs to be non-toxic. I was thinking ...
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1answer
122 views

How deep should PVC drain pipe be buried to ensure grass will grow above ground?

I’m burying 4” solid PVC drain pipe (not a French drain) in my yard for downspout & surface drainage. How deep should the pipes be buried in order to ensure that grass will grow above it? Due to a ...
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1answer
306 views

ok to run PVC pipe behind gas meter?

I am considering installing a radon mitigation pipe system in my home, but the only area where I could reasonably have the pipe exit my home is crammed with all my other utilities. The best spot I've ...
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1answer
30 views

Can we paint exterior pvc board around windows dark brown?

The wood frame around our exterior windows is rotting. Our home is dark brown stained cedar siding, and our window frames are also dark brown. We called a local construction company to fix the old ...
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1answer
64 views

What is the technique and required materials to connect a new PVC elbow to an existing PVC T-Pipe?

When connecting a new PVC elbow to an existing PVC T-Pipe, is there any special technique required or any materials (such as plumber's putty) required to complete this task? I'm imagining it's very ...
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1answer
69 views

Why is my exterior PVC water main covered in vinyl wrap?

I'm going to replace the main water shutoff valve that feeds my house. The 1" PVC water line comes up thru the ground and then threads into 1" copper (that's the part I'm going to alter). I ...
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1answer
252 views

PVC Pipe for sprinkler system broken in multiple places

Roughly 2 years ago I posted this question: Need Sprinkler Cracked PVC Pipe Repair Suggestions There was a lot of good suggestions, but now the issue has gotten much worse. In the image below I'm ...
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1answer
56 views

Using 1.25" SCH 40 PVC pipe to protect hose for irrigation

I'm setting up a simple irrigation system on my farm to deliver water to my fruit trees. What I want to do is to run a hose (a simple garden hose) through 1.25" schedule 40 PVC pipe to protect ...
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2answers
302 views

How to connect PVC to galvanized pipe

What are the proper ways to connect PVC to galvanized metal? The context of this question is for a house that has a kitchen drain stack made of 2" PVC, except for the topmost (vent) section, ...
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4answers
4k views

Trying to design and build a system where water pump into multiple outlets (pvc) evenly

I am trying to build a little irrigation system where my water pump distributes the water into multiple outlets. I guess my question is how do I make sure the water flows evenly in all the pipes. I ...
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2answers
1k views

What is this pipe in my garage for?

I measured it and it would come out under the cement where I approximately marked in red in the next picture. The main house sits on the other side of that cement walkway. My only guess is it has ...
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0answers
58 views

How do I fix this shower drain?

A couple days ago I noticed in the ceiling some dripping water after taking a shower. There was really no reason the pipe would have broken, so I pulled up the shower grate thinking it was maybe ...
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3answers
1k views

Is there anything to help reinforce PVC pipe?

I am plumbing a pond and have some above-ground PVC pipe. I used the purple and blue glue to attach the pipes, but am concerned some pipes could still come loose. I plan to wrap the pipes with duct ...
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2answers
103 views

Can I repurpose an unused 6" radon pipe as an electrical conduit?

When the house was built, 3 radon pipes were installed between the basement and the attic. They are 6" PVC plastic are completely within the walls of the home except for their ends. Only one of ...
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1answer
3k views

Is there a name for PVC pipe that's approx 1/2" ID and 5/8" OD?

I have a PVC pipe that supplies water to a valve, and then goes to my toilet. It's approx 1/2" inner diameter, and 5/8" outer diameter; it's stamped on the outside of the pipe that it is 1/2". The ...
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0answers
43 views

How to connect flexible PVC tubing to PVC pipe with no chance of connection breaking?

I am assembling the plumbing for a pond. I've put nearly all of the plumbing under water, so if something breaks, the leak will occur underwater, within the pond, and thus, it has no chance of the ...
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1answer
82 views

How should I drain an area of gravel between a sidewalk and retaining wall?

We are reclaiming a flower bed and extending our existing patio. After a gully washer I am now concerned about drainage for this 5ft by 36ft impervious surface we are adding. We are also adding a ...
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1answer
161 views

Leaking PVC pipe & joist notch

I appreciate any help with my problem below. I have a PVC drain pipe that is leaking. The drain pipe is from a tiled shower floor. It looks like the joist is pressed up against the pipe elbow and ...
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1answer
2k views

Is is okay to run 4" PVC drain pipe on the outside of a house?

I have to run 4" drain pipe for the washer that is on the second floor, but, the building being old and all, I wouldn't want to rip the floors, instead, I was thinking of running the drain on the ...
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7answers
51k views

How do I easily separate unglued PVC pipe from joints?

I've been retrofitting an existing PVC irrigation system around my house. Part of that work requires that I work in shallow holes adding T joints and elbows in places where there were none before. In ...
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2answers
68 views

Is there a product that provides a switch for diverting water through a different set of pipes?

I have a pond setup where there are two pools, a lower pool and upper pool. Water is pumped from the lower pool into the upper pool, with an electric pump, then flows back through a waterfall. Much of ...
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1answer
25 views

Does the orientation of a swing check valve matter?

I am installing a swing check valve on the plumbing of a pond. The purpose is to prevent the water from flowing backwards through the pipes during a power outage. It water were to flow backwards, ...
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0answers
51 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 ...
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0answers
23 views

Sprinkler pipe in concrete

I'm having a concrete deck installed, and I'm keeping a sprinkler pipe in the concrete for use in a drip system. Is it ok if the pipe is PVC or should I replace it with a galvanized pipe?
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1answer
50 views

Which grade of PVC piping do I need in order to sustain a 1,000Pa vacuum?

I'm rigging a proof of concept DIY machine, in which the internal pressure will need to be at most 1/50th of atmospheric pressure. For a safety margin, I want the machine to withstand 1/100th ...
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2answers
80 views

Spilled pvc primer in water softener tank?

So, let me start by saying I’m an idiot. As implied by the title, I spilled pvc primer in my water softener tank. I was installing a whole house filter overhead and doing the piping and knocked it ...
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0answers
59 views

Irrigation system B-Hyve with manifold away from the faucet

I am using 3 B-hyve Smart Hose Faucet Timers to schedule watering. The current system is connected as: Faucet ---- ~35 ft garden hose ----- backflow preventer ---- 4-Way Hose Faucet Splitter --- 3x (...
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3answers
55 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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2answers
147 views

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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2answers
602 views

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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1answer
25 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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