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0
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1answer
50 views

How would I secure a pex shut off valve to the stud in the wall interior?

This 3/4 in. Brass PEX Barb x Barb Ball Valve will be my main shut off valve in my house. It will be in an interior wall behind a wall panel. How can I secure this valve within the wall so it doesn't ...
1
vote
2answers
41 views

What's the advantage of PEX crimp/clamp over the expansion connection?

It seems the ease and reliability and no water pressure loss of the expansion connections makes them far superior to the alternative. So besides slightly cheaper materials cost and less expensive ...
1
vote
1answer
34 views

Is PEX exposed to the environment OK to use?

In preparation for a big job I found some PEX on craigslist. It appears to have been exposed to the elements but all in all it looks fine. Can PEX withstand a little environmental conditions ...
1
vote
2answers
74 views

How to Get PEX to Seal

I'm in the process of moving my laundry area. For the plumbing we decided to use PEX. Unfortunately I have been unable to properly seal the PEX tubing to the fittings on the final fixtures- they ...
0
votes
1answer
57 views

Best Type of Pex Manifold

I am looking for recommendations on the best brand of PEX manifolds for a residence installation. Need one with shut off. I am concerned about the plastic based ones?
1
vote
1answer
81 views

Can I insulate PEX pipe in a crawlspace with fiberglass insulation?

I have PEX pipe hung under the floor joists in my crawl space. I am inclined to cut fiberglass wall insulation R-14 into strips and run it under the pipe.That will encase it as the floors are well ...
6
votes
1answer
182 views

I think I have a section of frozen PEX inside an exterior wall. What should I do?

The sink in our main floor bathroom, which has an exterior facing wall, seems to have a frozen hot water pipe. The cold water flows freely and toilet is fine, but hot water seems to be frozen, which I ...
1
vote
1answer
201 views

Should I run 1/2“ pex from a manifold to each fixture or 3/4”?

Right now my setup is 3/4" cpvc pipe running from the water heater and then branching off into 1/2" cpvc pipe to each fixture. If I buy a manifold will there be a a pressure drop if I run 1/2" pex ...
2
votes
4answers
285 views

PEX Pipes running along Ceiling on Inside Wall

My landlord fixed a leak from the baseboard heating system using a plumber who decided to run the red [guessing PEX pipes] from the water heater/boiler to the baseboards along the ceiling. The pipes ...
0
votes
2answers
94 views

Can I use ProPEX for Pressure Relief and Steam Generator Drain?

I'm installing a steam generator and a tankless water heater. I want to know if I can use ProPEX for the P&T relief and for the steam generator's auto drain valve. The googling I did on the ...
4
votes
0answers
76 views

How can I remove the residue that is building up in PEX tubing?

I have a pex plumbing system that has been slowly clogging / losing pressure. Our sulphur treatment system injects peroxide into the pressure tank then flows upstairs to the filter system. The ...
0
votes
2answers
912 views

Using PEX for a water heating system

I am replacing my existing faucet plumbing with red / blue PEX all over the house. Everything that goes to the sink, dishwasher, washer, bathroom sink and so on will be color coded and installed ...
0
votes
1answer
222 views

PEX Manifold with existing piping?

Our home has a large addition on it and i'm thinking of running newer lines throughout our original house that has copper. There are many bends at various points and some are starting leak (probably ...
2
votes
2answers
314 views

Why not double up on PEX cinch clamps?

I'm looking to replace some copper pipe with PEX. The online debate seems heated, although local plumbers I've talked to seem indifferent about the particulars, just praising PEX in general vs. ...
0
votes
1answer
279 views

How do I plumb an outside line to a roof deck faucet?

I want to get water from the first floor up along the outside of the wall (with a parapet and projecting coping) to the second floor. I got this working as follows: 1st floor hose bibb -> 4:1 hose ...
0
votes
1answer
215 views

Does PEX tubing need to be secured to attic joists?

I am slowly replacing my pin-holed leaking galvanized plumbing, piece be piece with PEX and Sharkbite connectors. The old galvanized is secured, in many places by both clamps and u-nails. What is ...
0
votes
0answers
134 views

Does PEX Plumbing Need Risers?

I am slowly replacing my galvanized plumbing, piece by piece with PEX and Sharkbite connectors, and it got me thinking: do I need to keep the risers?
1
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3answers
1k views

Should a water distribution manifold consist of a circular loop?

I'm replacing the copper in my house with PEX tubing and I'd like to set up my new utility room with hot water and cold water manifolds. Each connection on the manifold would then lead to either hot ...
1
vote
1answer
507 views

Will I notice a pressure drop going from 1/2“ pex to 3/4” CPVC then to 1/2" CPVC?

I'm replacing my older CPVC piping in my house and I have access to almost the entire house except the master bath area. At first, I thought it was being fed by a 1/2 inch line that I could just ...
1
vote
2answers
3k views

Using PEX for baseboard run

I had a copper (baseboard heat) pipe freeze and burst, and need to replace a run of pipe that's exposed to that kind of cold when it gets below 0F outside. The pipe is below the floor on an exterior ...
1
vote
1answer
8k views

Can I run water lines through the attic?

I recently had a Slab leak in my home in Indianapolis,IN. This is the 4th Slab leak since I've owned the home. I decided it was time to reroute all the Water lines. I thought this was best so I ...
2
votes
0answers
257 views

what PEX fittings can I use with a Zurn PEX QickClamp Crimp Rings?

I have Zurn crimp rings and the Zurn ratchet tool. I was wondering what brass fitting I can use. Do they need to be Zurn fittings or can they be any crimp fittings? For example, can I use ...
1
vote
0answers
280 views

Pulsing water with PEX tubing?

Our home is plumbed with PEX tubing, from what I can tell. When summer started, the shower started running hotter, so we turned down the shower lower and lower. But when we reached a certain place ...
0
votes
0answers
415 views

How do I flush and pressure-test a PEX system?

I have all the information on how to install the PEX plumbing system, but nothing on how to flush it or how to pressure test the PEX system. Can someone help?
1
vote
0answers
609 views

If I use (2) 3/4“ inlet PEX manifolds (hot/cold), do I need 1” PEX supply from the meter?

I am replacing all the plumbing in my house and to the meter. I will be using PEX. I have manifolds for hot and cold with 3/4" inlets and 1/2" outlets at the valves. Do I need to use 1" PEX tubing ...
0
votes
1answer
164 views

Are PEX required for shower mixers?

From my understanding it is normal to mount a PEX like this one in the wall. And that it is not legal to have hidden connections in the wall. Question Why are PEX so often used (required)? Is it ...
4
votes
2answers
3k views

Whats the difference between black, blue and red PEX pipes sleeves

I'm using PEX pipes for water tubing, but I'm not sure which sleeve type should I use for hot and cold water pipes. Whats the difference between black, blue and red sleeves? and which should I be ...
3
votes
2answers
4k views

Is it possible to use a hot water recirculation pump with a PEX home run system?

I am interested in getting a hot water recirculation pump installed so that I can get hot water faster to each of my faucets. From looking at the picture and researching I believe I have PEX in a ...
8
votes
2answers
16k views

How should I configure my plumbing with PEX?

I have a house built in 1940, which has a mix of copper, PVC and galvanized pipe for its plumbing at present. I am going to be gutting the upstairs bathroom in the near future, and have access to ...
3
votes
4answers
2k views

Is temporarily reducing the water supply line an option when installing a water softener?

I am installing a water softener in my house. Currently we're getting the water supply from 1" PEX that has a service loop in the garage. I built my own 1" PVC bypass system for a GE water softener ...
4
votes
2answers
8k views

Proper way to attach tapered, threaded connections?

I've been ripping out the PB water line throughout my house and replacing with PEX and a bit of copper piping. However, the few threaded fittings each have very slow leaks. Above the water tank I ...
12
votes
5answers
14k views

Will a PEX run freeze if it's in the attic above a foyer?

I plan on running PEX pipes both hot and cold across 16 feet of unheated attic space above a foyer. The foyer is 16' long and is off the kitchen, it isn't heated directly but is part of the house; it ...
6
votes
1answer
4k views

Does PEX leach BPA when used for hot water plumbing?

Would using PEX for potable hot water result in having Bisphenol A (BPA) leached into the water? Does PEX have BPA content?
6
votes
1answer
1k views

When replacing a supply line to a house in Houston, TX, what is the best material to use?

A house in Houston, TX (southern "sun belt" climate, no frost, but flexible clay soils) has a Polybutalyne supply line running from the meter to the house. It's already burst once and been repaired, ...
7
votes
8answers
9k views

Why is my brand new PEX clear tubing turning green near the water heater?

I just moved into my house with brand new PEX (uponor) plumbing. I used clear for the hot and cold instead of red and blue, because I bought everything myself and I thought it would prevent wasting ...
6
votes
2answers
824 views

“Dead-ending” unused plumbing

I'm planning on moving our hot water heater from its current location in our mudroom down to the basement, to live in what will become sort of a mechanical closet in the to-be-finished basement. My ...
6
votes
9answers
27k views

What is the advantage of PEX pinch clamp vs. crimp rings?

I just saw these for the first time today at Lowe's: The advantages I can see over the crimp style are: A single tool can work with multiple PEX sizes That single tool is cheaper than a ...
5
votes
2answers
8k views

Can I convert/adapt to PEX from copper tubing?

I'm remodeling a bathroom, and some of the copper tubing needs to be replaced, due to leaks and the need to reposition fixtures. Is it feasible and recommended to convert from copper tubing to PEX? ...
8
votes
3answers
484 views

Does PEX require home runs?

I've been told that PEX requires home runs to a manifold (or star topology, to borrow from networking) to maintain the same flow rate/pressure as copper. Anyone else heard this?
12
votes
3answers
2k views

Why would you use copper over CPVC or PEX?

Are there any advantages to using copper rather than CPVC or PEX?
9
votes
14answers
26k views

Is it worth it to insulate hot water PEX tubing?

Is it worth the time and expense to put the foam pipe wrap on pex hot water pipes? I've seen mixed statements. What is your thought? But more importantly, can you back it up?
17
votes
10answers
16k views

Does Pex tubing have any advantages over copper?

What are the advantages/disadvantages of Pex tubing? How does it compare to copper?