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11
votes
13answers
62k 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 single-...
2
votes
1answer
206 views

Should I upgrade to 3/4" pipe all the way to my new pex manifold?

I have a water meter with a 3/4" supply line that is fitted to an adaptor which then runs 1/2" to all the pipes in my house. I'm in the process of installing a PEX manifold system for some new ...
9
votes
2answers
25k 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 ...
0
votes
1answer
37 views

Installing a drainable waterline to garage, draining into sump for winter months

So, My utility room shares a common wall with my unheated garage. I've been toying around with the idea of running some pex out there to have a spigot in my garage. I'm wondering if I need to attach a ...
1
vote
1answer
44 views

Can I connect an indoor water meter to water heater with PEX?

So I have a water meter in our basement, connected to the city line via copper (it's also our electrical ground). From the meter is decades-old galvanized leading to a leaky shutoff (which I plan to ...
2
votes
1answer
54 views

Do I need to angle/pitch pex tubing for draining in the winter?

I've never installed any plumbing before, but I'm going to try to install an outside faucet/sillcock because it seems fairly simple. The only interesting part is that the pex tubing will be run under ...
1
vote
4answers
3k views

How to remove a stuck Sharkbite connector from a PEX tube?

I have a Sharkbite stopper that I put on the end of a 1/2" PEX tube, and now I'd like to remove it. I've used both the official orange plastic removal tool and an adjustable wrench, and my fingers are ...
18
votes
13answers
28k views

Does Pex tubing have any advantages over copper?

What are the advantages/disadvantages of Pex tubing? How does it compare to copper?
0
votes
1answer
43 views

How can I make sure my pex line is sloped so I can drain it?

I'm running a cold-water pex line in a basement crawlspace that gets extremely cold (i.e. freezing) in the winter. I'm going to use a drainable ball-valve inside the house so I can drain it in the ...
0
votes
2answers
77 views

Can my pex line freeze if I use 90 degree elbow connectors?

I'm installing a sillcock outside my house and I'm trying to create a drainable line so it won't freeze in the winter. Here's the setup from the outside in: This entire run is located through a ...
0
votes
3answers
78 views

Galvanized pipe life expectancy

USA, NW Oregon, single-story house with crawl space, built 1972. Background The house has the original galvanized piping in the crawl space and suffers from low water flow in two bathrooms. Static ...
1
vote
3answers
114 views

Connecting 1/2 copper to 1/8 pex?

Water line to fridge had a saddle valve, saddle valve started leaking so took it out and repaired pipe. Now trying to figure out how to reconnect fridge line. I have 1/2 inch copper under the sink and ...
0
votes
1answer
46 views

Troubleshooting pex leakage

I replaced all the copper in my home with pex in 2008. I have had a seepage leak on one of my hot water fittings. I took it apart and cleaned all the parts and reconnected it, and still the seepage. ...
0
votes
1answer
242 views

Plumbing rough-in pressure test PSI

My plumbing rough-in is done, and inspection was passed. Unfortunately, I had to move a couple of things the plumbers did. I probably had to redo about six crimps rings. Before I go any further, I'...
0
votes
3answers
6k 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 ...
1
vote
1answer
220 views

Shower Valve / Diverter pipe thread size

I am ordering my pex parts and am wondering what standard tub/shower valves use on the adapter. Male or female? 1/2" or 3/4" size? I'd prefer a reputable brand but it looks like the adapters vary...
2
votes
5answers
1k 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 ...
4
votes
2answers
80 views

1“ pex through 3” pvc conduit?

I intend to use schedule 40 3" pvc pipe to run my pex from outside water heater, through slab, up into an interior wall. I will have sweeping 90 ells. Will 1" or 3/4" pex be able to make the ...
1
vote
2answers
118 views

Running PEX lines

My floor joists do have pre-cut knockouts - however the joists are not all lined up so the holes vary. I need to run a few lines perpendicular to my joists. I am thinking about drilling holes near ...
10
votes
15answers
38k 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?
8
votes
2answers
217 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
0answers
53 views

Alternative attachment to concrete floor containing pex heat tubes

I am getting ready to finish my basement. The counties "Typical Finished Basement Details" say that bottom plate attachment to floor is with 16D concrete nails face nailed. What are USBC approved ...
3
votes
1answer
113 views

Rough-in pex line

I have plans of building a bathroom on the second floor next year. I am currently re-modelling the first floor and I would like to get the plumbing for the new bathroom in place so that I do not have ...
1
vote
1answer
155 views

Question about end caps on Pex lines for Washer in new house

I just purchased a new home and the washer and dryer are in the basement, I plan to learn how to run pex soon although only know a little about it now. I went to go hookup my washer today and there ...
0
votes
0answers
21 views

pex home run system with no crawl space

How many holes can I put in a continuous run of studs to run multiple lines to different fixtures. I basically have 20 hoses that need to run through the same 15 ft horizontal of wall. they should ...
3
votes
2answers
203 views

Is it a problem that PEX emerging from the walls is floppy

I'm working on a bathroom remodel (necessitated by a failing sub-floor, but that is neither here nor there), and PEX has been recommended either to completely replace the affected plumbing or at least ...
1
vote
2answers
16k 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 wouldn'...
8
votes
4answers
633 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?
1
vote
2answers
6k 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
3answers
828 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
220 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
951 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
49 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 ...
6
votes
1answer
6k 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?
2
votes
2answers
747 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. copper....
3
votes
4answers
3k 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 (...
0
votes
1answer
168 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
227 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 ...
1
vote
1answer
548 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 ...
7
votes
8answers
13k 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
1answer
284 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 ...
4
votes
2answers
12k 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 ...
1
vote
1answer
773 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 ...
0
votes
2answers
349 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 P&...
12
votes
5answers
18k 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 ...
1
vote
1answer
401 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 ...
0
votes
1answer
903 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
436 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
192 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?
3
votes
2answers
6k 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 "...