Questions tagged [pex]
PEX (cross-linked polyethylene) is a flexible plastic pipe that has gained popularity due it being cheaper (and often easier) than copper or PVC. Use for questions about working with the pipe, and use with the [plumbing] tag
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Options for connectors/couplings for polyethylene pipe
A while back I asked a question about which type of pipe to use for running above ground water to a house. I've decided to use 1-1/4 inch IPS 160 psi NSF Polyethylene Pipe.
Are there better options ...
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How do you cut pex-al-pex or pe-al-pe?
The tubing pex-al-pex has an aluminum layer in it. This question is about tubing with an aluminum layer inside and not, not regular PEX-A or PEX-B.
My house has (or had) kitec pipes. I'm in the ...
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How long should you wait after you set a cold-expansion fitting before pressurizing the system?
Some people online say you should wait after using cold-expansion fittings before adding pressure to the system. With Uponor pipe, is there any guideline on this?
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Why can't you use PEX between tub and shower valve and the spout?
This took me by surprise, but I was reading the Residential Installation Instructions for Uponor PEX A, and it says,
Do not install Uponor AquaPEX pipe between the tub/shower valve and tub spout.
...
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Outdoor plumbing using pex pipe
I live in Portugal and moved into this house a few weeks ago where the plumbing was renovated by the previous owner using PEX pipe.
The plumbing is all outside of the walls, including before it enters ...
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No hot water from wall feed into washing machine?
I have a basement laundry room with washer/dryer and utility sink.
I am receiving no hot water flow out of the valve for the washing machine. I have checked the hose from the wall to washer and it is ...
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Can I migrate from Kitec to PEX in gradual stages?
My house has Kitec plumbing. I would like to replace my main runs which are 3/4 inch hot and cold water; these 3/4 runs are the ones that run in the ceiling. This leaves the runs in the wall for later,...
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How can I identify new & improved PEX plumbing materials with less fracturing & chlorine/chlorimene degredation issues?
Just bought 14 year old 3,200 sq ft,(3-Bed,3-Bath) house & may have to work on the PEX plumbing issues. I have read a lot about class action law suits, relating to (PEX-A Pipe fracturing, ...
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Is converting 3/4" copper to 3/4" PEX okay for small home?
Should we up-size when converting from 3/4" copper to pex around water tank?
I am replacing a leaky valve on a section of 3/4" copper pipe on the feed-side of my water heating tank, with PEX-...
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How best to brig old Pex water lines up to code / safety
My house in in western New York state. I'm trying to deal with the hack job that the previous owner or flipper did on my house with respect to the water supply lines in the kitchen (hot to sink, cold ...
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Frozen PEX piping
We recently did remodeling and replaced copper piping with PEX. The kitchen and master bath are both on an exterior wall. We are in cold climate and we have had 2 days of extreme cold (-10 to 3 ...
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How to disconnect this pex toilet water supply hose
I recently installed a new toilet and the old water supply hose doesn't reach. So I bought a new longer one and wanted to swap it out.
The old hose just doesn't want to release. I've pulled it, tried ...
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In order to avoid shutting off water to the whole house, can I temporarily terminate a PEX pipe at a closed shut-off valve?
I am helping the in-laws remove their countertops and disconnect their kitchen sink in preparation for new countertops and a new sink. The only wrinkle is that the existing sink does not appear to ...
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Repiping residential water supply
House is being repiped. All hot and cold pex pipes are zip tied together throughout basement dropped ceiling. Diagrams I have seen show proper spacing between hot and cold pipes. Is my job up to ...
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Should I upsize my PEX plumbing when adding a bathroom?
I'm in the process of adding 1 more full bathroom and a bar to my house. As I've been researching how to go about, I've stumbled upon this resource for sizing the PEX pipes.
It says my current setup ...
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MIP threaded pipe in NPSM female threads
I'm installing a freestanding tub faucet. According to the manufacturer's spec sheet the supply lines have 1/2 inch female NPSM threads, which I believe is a straight thread. I'm trying to attach ...
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Is this a PEX line with a compression fitting leaking?
This section of pipe is the incoming main to the house. I believe it's PEX but need confirmation. It transitions here to copper throughout the rest of the house. Anyway I replaced inline the PRV right ...
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Need help planning reroute of cold water line
Recently purchased a house and am in the middle of replacing the lead water service line along with what I think are more lead pipes.
From the water service line, the pipe goes underground then re-...
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PEX Plastic fitting
Can I use a copper clamp ring which has F1807 written on it with a plastic (poly) fitting? It seems like F1807 should only be used with brass (as ASTM states). I understand ASTM F2159 describes copper ...
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How can I create a plumbing disconnect for winterizing a cottage?
I have a summer cottage where, each year, I need to unhook a few pex connections to drain the system so that it doesn't freeze.
I'm re-working the system this spring, and want to design it so that it'...
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Which is better, brass or plastic fittings for pex-a pipe (which uses expansion fittings)?
We are replumbing an old house with pex-a in a north central Texas. I have seen pros and cons for using brass vs plastic fittings. There does not seem to be a consensus on the best choice. Price is ...
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Two reducers in-line from air compressor to air tool?
Previous house owner run PEX pipe in the garage from a 60 gal air-compressor to multiple hose reels. One of them developed a leak and I had to cut through copper pipe to remove it - it was all hard-...
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PEX Homerun vs T&B with 1/2in Supply
I'm adding a small bathroom to my detached garage. I've read lots on home run vs trunk and branch, I've got a pretty good idea of the pros and cons of each.
Issue for me is, I've got 1/2in copper ...
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Elbow or just bend PEX pipe through wall
I have this PVC piping:
It comes out the basement wall, up the exterior wall, and then back through the bathroom wall.
One pipe is carrying hot water, and it's leaking so I want to change for more ...
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How to have a tub faucet, shower head, and rain shower head?
I am remodeling my bathroom and installing a new bathtub. I would like to have the tub outlet, a shower head outlet, and a ceiling rain outlet. I would like to use the rain shower head and the normal ...
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How do I connect Pex Line to Braided Hose?
I have a singular Pex type B hot water line running to my sink specifically for dishwasher hookup, however my dishwasher has a threaded hose line running from it to reach the sink. How/what do I do to ...
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Any issues with putting foam around a pex rough in?
I don't like the idea of drilling the holes required to attach the below cover for the blue pex pipe
The plan is to use silicone or PL to glue the cover to the tiles
I did try to test drill in piece ...
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Would there be a problem running a whole house water filter in line like this?
I am in the process of changing the 50 year old copper plumbing in my house to PEX. I wanted to install a filter and scale inhibition system in line right after the valve and meter coming in from ...
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Is there an adhesive that I can use to install this PEX tube cover?
The tiles are porcelain
The PEX cover tube is like this one
Typical installation is like this but I am not sure if the tile is not going to crack
in my situation the hole around the pipe is not like ...
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Can I pull ethernet cable through 1/2" pex?
I have an exterior garage that I need an ethernet cable in for a desktop computer, but it's surrounded by a concrete slab and brick patio (seemingly making it impossible for me to run it underground).
...
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How do I Loosen a Stuck Threaded Brass Fitting?
I’m about to replace some of the brass water pipes to PEX in my basement. I bought an adapter fitting at a plumbing supply store(picture 1) and cut the cold water pipe(picture 2). I tried to remove ...
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Is PEX okay with the high temperature steam?
I’m about to replace my old cooper pipes to PEX. There’s a steam pipe and a branch attached in 90 degree to release some steams. The thing is, the cold and hot water pipes are right above the steam ...
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How can I tell PEX from polybutylene pipe?
There's a blue pipe (1" diameter) extending ~3 feet from the city water meter before transitioning to 1" copper, then the copper connects 2 feet later to my rusted galvanized. I've run new ...
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How best to change a section of PEX hot water return line between two FIP tee fittings?
I want to change the section of PEX hot water return line between the 1/2" tee fitting near the floor beam and the 3/4" tee fitting at the water heater drain.
I want to keep it simple with ...
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What material pipe to carry water to a detached garage
Location: California.
The water service to my house arrives with some sort of plastic material pipe (I would assume this is the original material used in the 70s when this house was built).
I now plan ...
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Does PEX-B support expansion fittings?
PEX is a type of plastic piping used in buildings. It's an old technology but the variant PEX-A (frequently known by the brand name Uponor) has come to be viewed largely as the better variant because ...
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1/4 copper to 1/2 PEX to 1/4 copper?
I have an old home that has a 1/4 copper line running from a copper valve tee in the basement, directly up through the floor boards, into the fridge.
I'm trying to add an ice maker valve box behind my ...
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Mixing PEX A and PEX B?
I want to run 1" trunk and 1/2" branches to fixtures, and would prefer to use PEX A mainly for its flexibility. Unfortunately my local stores only carry PEX A in 1/2 and 3/4 sizes. Would it ...
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repiping house with PEX [closed]
1950s house with original galvanized pipes. Looking to repipe with PEX.
Currently low water pressure, takes minute(s) for hot water to reach back of house, very hard water with occasional orange/brown ...
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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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Can PEX be routed through existing Copper Pipe?
We have a kitchen island with a faucet/sink and the existing copper pipe under the tile floor has sprung a leak.
The plumber is suggesting to run a PEX pipe through the existing copper pipe to restore ...
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Replace Copper Pipe & Gate Valves With PEX Pipe & SharkBite Ball Valves & Fittings
Summarize the problem
My 35 year-old home's water supply gate valves and outdoor hose bibbs are very difficult to turn on and off.
Provide details and any research
The primary water supply comes in ...
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Hose splitter leading to low pressure
I recently added a garden hose splitter to my bib in my garage and outside, to be able to use 2 hoses at the same time from the same bib. I would sometimes need to run both my garage bib and outside ...
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Can I safely attach new fittings to an older PEX A line?
I have a 10yr old "PEX A" line (red, 1/2", "potable," "100PSI") running to my rear hose bib. I'd like to install a tee in this existing line and run a branch to the ...
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Can pex be used underground?
I have 2" PVC coming from my well, connecting to a PVC shutoff valve and then to an existing spigot. I want to removed existing spigot and extend water line 140ft to my RV location and install a ...
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Is putting a pex tube underground and then through a concrete slab OK?
I have a house with a basement and I'm building a garage about 50 feet away in the backyard. The garage will be on a concrete foundation and I want to run both power and water out there. (I want the ...
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Can you use wirsbo/uponor/expansion pex for underground sprinklers?
I cant find much information around this online, it appears that its possible.
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Is it normal for installed PEX piping to be curved or bowed?
Red PEX is curling or bowing throughout the main hot water line from hot water tank feeding all the faucets and showers. Is this normal?
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Protecting PEX/UF-B/Ethernet from gophers with hardware cloth?
I have a well house and some outbuildings that will need some water. I am running 1" PEX underground in 30" deep trenches to these buildings, as well as 10/3 UF-B and some ethernet cable for ...
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When using using 3/4 PEX for cold water in a bathroom that has shower, sink and toilet, do I need to reduce to 1/2 when I am branching to the fixture?
I was advised to use 1/2 PEX for the hot water and 3/4 Pex for the cold water
The bathroom has shower, sink and toilet
Do I need to reduce to 1/2 when I am branching to the fixture ?
I can't find ball ...
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