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Questions tagged [cpvc]

Chlorinated PolyVinyl Chloride (CPVC) is a close cousin to PVC, but it has a higher temperature tolerance, making it suitable to carry hot water. Commonly used for indoor water lines. Use with the [plumbing] and/or [pipes] tags

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Can I Go Copper to Pex/CPVC

I've got some 1/2 inch copper piping and a capped pipe. The tee was originally used to run water to a washing machine cold water line (hot was not run as it was not being used). Due to home ...
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1 answer
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Can I run pex in my attic and cap the cpvc lines in the foundation?

I live in South Florida near Jupiter. I bought a house that was built in 1997. All original plumbing is cpvc. I have heard horror stories of both slow and catastrophic leaks in the neighborhood. I ...
Daniel Morrison's user avatar
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2 answers
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Replace PVC valve cemented on a water line

I have a filtering system with a bypass and one of the valves was badly installed and it also leaks through the handle gasket. The valve is in a system that looks like this: The encircled area is ...
CuriousPaul's user avatar
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Water supply line not capped?

Recently while replacing a water shutoff valve in an upstairs vanity, I accidentally broke the CPVC pipe in the wall behind the shutoff valve. After cutting open the drywall to effect the repair, I ...
Tony's user avatar
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4 votes
2 answers
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PVC electrical conduit vs. PVC for plumbing [duplicate]

What's the difference between PVC electrical conduit vs. PVC plumbing? Can they be used interchangeably?
missin44's user avatar
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Consolidating cpvc elbows out of water heater

I've just noticed a crack in one of the 90 elbows coming out of our water heater, which I am going to replace. But for some reason, the water makes 3 turns before going to the rest of the house. I ...
apoteet's user avatar
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Where to install water shutoff valve

I'm remodeling a bathroom in a house built in 1993 (Midwest USA). Apparently the plumbers didn't add shutoff valves under the main or master bathroom sinks... I've found plenty of instructions online ...
ARich's user avatar
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2 answers
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What additional precautions should be taken with this plumbing repair?

A plumber came over for installing a wash basin on a Saturday morning. It was expected to be an hour-long job, but it turned out to be a wasted Saturday morning. I narrate the ordeal below along with ...
Kedar Mhaswade's user avatar
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Threaded Brass adapter leak

A pair of adapters is bridging CPVC to PEX. The pair is coupled through threaded brass: PTFE Teflon tape was applied. There is a very slight leak in the brass threading. Any suggestions remedy the ...
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PEX / CPVC leak-test

The leak check includes a visual self-inspection of each end of a pressurized new PEX pipe. The PEX is to be piped into existing CPVC: the plan is to leak-check every 12 hours. How many days should ...
gatorback's user avatar
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11 votes
3 answers
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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?
CW Holeman II's user avatar
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How can I increase the friction on the surface of PVC pipe?

So, I have sort of an odd question - I need a coating (or something) that will increase the friction on a CPVC pipe as much as possible. Specifically, I rigged some CPVC pipe to mount a light from my ...
user1833028's user avatar
1 vote
1 answer
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Heat Tape on Empty CPVC Pipe

I'm planning on installing heat tape on the CPVC pipe that feeds to my garden hose. It occurred to me that I or future owners may choose to turn off the water and bleed the pipe. I realize I could ...
FreeSoftwareServers's user avatar
2 votes
0 answers
717 views

Are water lines required to be secured to the wall at the point of exit?

There are several water supply lines made of CPVC that do not appear to be secured behind the wall at the point of exit (to supply water to a fixture). Are there any building codes regarding securing ...
Britt's user avatar
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What material is this pipe? Options for new 2" Union

I'd like to go 2 inch pvc into my new pool pump from that valve. What are my options? This pipe is 1.5 inches, not metal, but I'm not 100% that is CPVC either, but I'm not an expert. I have a 2" union ...
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3/4 Inch CPVC Pipe Run Underground - Low Pressure

I tied into a water line that was capped off in my crawlspace. It is a CPVC water line that used to run to a sink in a utility room of my home. Water pressure when the line was connected was just as ...
user2676140's user avatar
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1 answer
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Do PVC glue, cement leave traces?

Before a month, I bought a domestic air conditioner for my bedroom and the person who came to install it, used somewhere PVC glue with that strong toxic smell (you can smell glue without to have to ...
Joshair's user avatar
2 votes
1 answer
397 views

Copper to CPVC transition fittings : allowed by code to be used inside a wall?

Does the Uniform Plumbing Code (US) allow copper-to-CPVC transition fittings to be used inside a wall? Just to be clear, I'm referring to the hybrid fittings that are part brass, part CPVC.
mrblint's user avatar
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2 answers
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Adding CPVC tee to existing 1" CPVC water main line

I am trying to add a tee to my water main to branch a line for irrigation system. My water main is 1" CPVC and doesn't have enough movement to insert the tee. Any ideas? Need the tee inserted in the ...
pubanitme's user avatar
1 vote
1 answer
9k views

PVC to CPVC transition

Is it OK to solvent weld PVC to CPVC? I have a Schedule 40 PVC line outside a building and need to transition to CTS CPVC for indoor plumbing (because code). I'm wondering both from a practical (will ...
Serguei's user avatar
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2 answers
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Is solvent fitted 2” pvc safe for use with drinking water?

I have a 500 gal outdoor drinking water storage barrel, that I want to attach a hydrant to (the hand operated type) Yes I know the water will need to be disinfected after pulling it from the barrel. ...
Kerry Thomas's user avatar
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5 answers
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Replacing CPVC Pipe

I am at my wits end in attempting to replace some cracked CPVC pipe. There is a middle section that has cracked and here are the steps I tried to replace: 1) Cut both ends of the leaking section ...
BoJack Horseman's user avatar
8 votes
1 answer
12k views

Why does a water line behind wall of home have capped off areas above supply area that heads out to wall?

I couldn't find an answer to this question using Google. I think it's because I am not sure how to ask the question properly. I am not a plumber but I have seen in my new construction house with cpvc ...
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CPVC vs PEX in new home

My old house built in the 70s had galvanized pipe which developed small leaks and we replaced it with PEX pipe. It was a two story house. The new house we are buying is three story and has CPVC. I ...
LSUEngineer's user avatar
1 vote
1 answer
94 views

Can I plumb this restaurant sink this way?

Came across a 3 basin restaurant style sink that I am going to use in my basement (homebrewing!). I'm using CPVC to connect to this faucet but there was originally a short threaded black pipe ...
Roberto's user avatar
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2 votes
2 answers
434 views

CPVC - any health concerns?

We are considering a new construction where the builder has used cpvc pipes for hot and cold water. Are there any health concerns? Internet search is mostly negative. Anyone has any thoughts or ...
Andrew's user avatar
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1 vote
1 answer
3k views

Can I Use this fitting to connect CPVC tubing to a new shower valve

I am replacing a 30+ year old shower valve as part of a master bath remodel. The existing shower valve has 1/2" NPT female ports (qty 4), with one port capped. The new valve has 1/2" NPT male ...
Jim S.'s user avatar
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2 votes
1 answer
176 views

Plumbing next to a grill

I am installing a outdoor shower on the exterior wall of my house to go with my new pool deck. I have a built-in grill that has an enclosed cabinet underneath. I have a way to run a hot water and ...
Element Zero's user avatar
0 votes
0 answers
126 views

The right size of my cpvc pipe

I have a leaked cpvc pipe and I asked a question the other day. bathroom pipe joint leakage behind the ceiling tiles, now I am searching a new pipe for replacement, I thought the pipe is 3/4", as ...
J.E.Y's user avatar
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2 votes
1 answer
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What can be used for CPVC firestops?

What materials to people use as a firestop for where CPVC lines penetrate through the wall/fireblocking? According to the manufacturer, apparently CPVC does not play well with certain materials. &...
2 Left Thumbs's user avatar
4 votes
2 answers
1k views

Should drop ear elbows be used with CPVC supply lines?

When running CPVC supply lines for a sink, how should they be anchored before popping out of the drywall? I know with copper you can use drop ear elbows which are mounted to a backer But with CPVC ...
2 Left Thumbs's user avatar
1 vote
0 answers
63 views

How many connections can you have off of CPVC [duplicate]

I am looking to add a wet bar to my bathroom and was looking to tap into my CPVC lines to provide the water. Currently there are some 1/2" lines running near where I want to go that tap off of a 3/4"...
2 Left Thumbs's user avatar