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AR15.COM
12/13/2007 6:52:53 PM EDT
Is PEX plumbing any good?

The contractor is installing it in my garage remodel and I'm wondering if I should make hime use copper.

Thanks
12/13/2007 6:55:21 PM EDT
[#1]
I have it in my house. The nice thing is the big manifold that can individually shut off water to each line. The crappy thing is that I can't find a pex fitting crimp tool anywhere! You can buy them, but they are impossible to rent. I'm told they run about $130.
12/13/2007 6:59:13 PM EDT
[#2]

Quoted:
I have it in my house. The nice thing is the big manifold that can individually shut off water to each line. The crappy thing is that I can't find a pex fitting crimp tool anywhere! You can buy them, but they are impossible to rent. I'm told they run about $130.


I hate the shit, but I have the older gray shit. I've had to do repairs twice and as you said, you can't rent the crimper. Its against my morals, but I bought the tool, used it and then returned it the next day to HD. Gotta do what you gotta do.
12/13/2007 7:08:23 PM EDT
[#3]
Awesome stuff!

I remodeled a bathroom in my first house and used copper.  After trying to eliminate leaks, avoiding burning the house down, and getting solder everywhere, I knew there had to be a better way.

I bought a turn of the century victorian home that had cast iron, copper, pvc, and lead pipe that had sat through 2 Iowa winters with no heat.

I pulled every single inch of the old stuff out and replumbed the entire 4-bedroom, 2 bath home with PEX.

The plumbing contractor swore by the stuff and wanted to charge me $22,000 to do the entire house.

I went online and bought everything for under $1000.  I still have over 100' of 3/8" and 1/2" line left over.  I had zero leaks in the entire project and it was amazingly easy to run the lines and install the fittings.

When I sold the house 2 years later, I had encountered zero problems.  The house even sat through part of an Iowa winter with no heat and I had no leaks for the new owners.

One thing you need to ensure, though, is that if you are getting in-floor heat installed, make sure the contractor blows the water out of the lines if it is cold where you are.

A friend of mine is a contractor and installed PEX in-floor heat throughout an 8000 sq. ft. mansion here in Arizona last winter.

They had to run water through the lines when the concrete was being poured and forgot to blow it out when they were done.

It got down to 10 degrees or so in the unheated house and the PEX expanded so much when it froze that it actually broke the concrete out.

He about lost his business after the cost of replacing all that concrete.
12/13/2007 7:17:58 PM EDT
[#4]
Just bought a new house, all plumbing done with PEX, any long term issues to worry about? cracking, becomming brittle, etc. ?
12/13/2007 7:31:13 PM EDT
[#5]
2 thumbs up.  I prefer the poly ring clamps for a full 360 crimp.  Slide um on the end, stretch um and place on fitting.  They return to their original size and grip tighter that the crimp clamps.

Pick up a scrap of PEX and fold it back and forth to fatigue it, then heat it with a torch or heat gun.  
12/13/2007 7:33:06 PM EDT
[#6]

Quoted:
Just bought a new house, all plumbing done with PEX, any long term issues to worry about? cracking, becomming brittle, etc. ?
They have been using it in Europe for decades with no such issues.
12/13/2007 7:34:04 PM EDT
[#7]
Plumbers unions don't like it because it requires less time to install (less labor $$)
12/13/2007 7:39:19 PM EDT
[#8]

Quoted:
I have it in my house. The nice thing is the big manifold that can individually shut off water to each line. The crappy thing is that I can't find a pex fitting crimp tool anywhere! You can buy them, but they are impossible to rent. I'm told they run about $130.


Where in LA are you?

ETA: Pex is wonderful stuff...just keep sunlight and squirrels away from it and you'll be fine.
12/13/2007 8:02:05 PM EDT
[#9]

Quoted:

Quoted:
I have it in my house. The nice thing is the big manifold that can individually shut off water to each line. The crappy thing is that I can't find a pex fitting crimp tool anywhere! You can buy them, but they are impossible to rent. I'm told they run about $130.


Where in LA are you?

ETA: Pex is wonderful stuff...just keep sunlight and squirrels away from it and you'll be fine.


Actually, I have moved to UT, but forgot to change my bio. Thanks for the reminder.
12/14/2007 4:30:36 AM EDT
[#10]
If you have a Menards, they sell the tubing as well as all of the fittings and tools.

12/14/2007 4:34:35 AM EDT
[#11]
If I ever build another house or buy a remodel, I will use PEX.

Another plus to PEX is if you have hard water, calcium does not stick to PEX.
12/14/2007 4:37:00 AM EDT
[#12]
They used PEX in the last two houses we have built.

One thing I don't get though is why they use copper in the util area where the water heater, meter, ect. are,
12/14/2007 4:55:16 AM EDT
[#13]

Quoted:
They used PEX in the last two houses we have built.

One thing I don't get though is why they use copper in the util area where the water heater, meter, ect. are,


Probably easier to ensure a positive leak free seal on larger pipes with copper and solder.

The copper tube coming into my house and to the meter are about 1" diameter.  (maybe only 3/4)
I've never seen pex tubing that big.  
12/14/2007 5:01:14 AM EDT
[#14]
The only downside is that it can grow bacteria. Copper can not.
12/14/2007 5:03:47 AM EDT
[#15]
With the price of copper compared to PEX, there's no question what the better deal is.  The cost savings alone make it worth it.  

It is good stuff, and the best part is what you'd need several sections of copper to do, you can do with a single line of PEX.
12/14/2007 5:07:40 AM EDT
[#16]
There is also a PEX/Aluminum/PEX tube on the market.  Fittings have multiple o-ring sealing elements and can be had in polymer or brass.  It uses crimp rings like PEX/PB but should be more reliable as the aluminum gives it greater strength.

It handles like copper tube, much easier to fish through spaces but is lighter in weight and much cheaper.  Should last longer than either copper or PEX alone.
12/14/2007 7:24:13 AM EDT
[#17]
Another good thing about PEX,
people can keep their water softener set on warp drive.

Super soft water tends to eat up copper pipes.  
12/14/2007 7:44:35 AM EDT
[#18]
PEX is great stuff. We're do almost all of our heavy residential (alzheimers centers, assisted living, condos, apartments, etc.) with PEX and CPVC on the bigger sizes.
12/14/2007 7:57:52 AM EDT
[#19]

Quoted:

Quoted:

Quoted:
I have it in my house. The nice thing is the big manifold that can individually shut off water to each line. The crappy thing is that I can't find a pex fitting crimp tool anywhere! You can buy them, but they are impossible to rent. I'm told they run about $130.


Where in LA are you?

ETA: Pex is wonderful stuff...just keep sunlight and squirrels away from it and you'll be fine.


Actually, I have moved to UT, but forgot to change my bio. Thanks for the reminder.


Let me know if you need to borrow a PEX crimper let me know. I'm sure I can find one you can borrow here at the shop.
12/14/2007 11:30:50 AM EDT
[#20]
The thing about PEX is that there is no standard method of making connections. Each PEX maker has their own method/fittings.

What I learned from professional plumbers on plbg.com:

The type sold is big box stores is crap (QEST, Zurn, etc)

I researched the fittings, etc and I found that professional plumbers prefer Wirsbo/Uponor, Viega, or Rehau.

I bought a Wirsbo/Uponor Propex expander tool online. It was expensive (about $300).
12/14/2007 11:38:03 AM EDT
[#21]

Quoted:

Quoted:
They used PEX in the last two houses we have built.

One thing I don't get though is why they use copper in the util area where the water heater, meter, ect. are,


Probably easier to ensure a positive leak free seal on larger pipes with copper and solder.

The copper tube coming into my house and to the meter are about 1" diameter.  (maybe only 3/4)
I've never seen pex tubing that big.  


I have 1" plastic comming from the water main in the street.  Then to a brass valve then a bunch of coper lines going everywhere.  Then PEX before any of it leaves the room.
12/14/2007 6:00:07 PM EDT
[#22]

Quoted:
The thing about PEX is that there is no standard method of making connections. Each PEX maker has their own method/fittings.

What I learned from professional plumbers on plbg.com:

The type sold is big box stores is crap (QEST, Zurn, etc)

I researched the fittings, etc and I found that professional plumbers prefer Wirsbo/Uponor, Viega, or Rehau.

I bought a Wirsbo/Uponor Propex expander tool online. It was expensive (about $300).


Wirsbo is the best way to go...less bore restriction than the crimp fittings...but the tool is pricey. If you have to crimp it the stainless rings are better than the copper. They make pex in larger sizes...but for manifolds and mains copper or galvanized are much firmer...and you're not supposed to use less than a 6" piece of pex to allow for freeze expansion. It's good shit though...coonass