Pex piping

[Darin Redding]

What are your thoughts/concerns? This was a one year warranty inspection today. Large developer probably has hundreds of homes in the area.

[Stephen W. Stanczyk]

Wirsbo PEX tubing and connectors. Great stuff. If I was building I probably wouldn't have left the tubing laying on top of the fire system but don't seen any problem worth noting.

[Darin Redding]

So why all the lawsuits about the stuff?

[Stephen W. Stanczyk]

The Wirsbo / Uponor lawsuits had to do with the brass insert fittings that caused Dezincification and could fail as a result. Those shown are the plastic type that have not had any issues. I just finished replumbing one of my houses using this system. Very easy.

I think most of the lawsuits for any of the brands had to do with the type of fitting, whether the connectors or the crimp rings.

[Darin Redding]

AH yes, remember reading about the Dezincification process a while back. Thanks for the clarification.

[Jeffrey R. Pope]

Like Steve says, great stuff. Most new construction in CA is using this system.

[Al Brock]

I inspected a home Saturday with the Pex piping system that has the brass fittings that are part of the class action against Zurn-Pex. I called it out and recommended replacement. Has anyone else run into the brass fittings?

[Brain Reed]

Hi ,
I would like to add few comments regarding pex piping.
PEX is a cross linked polyethylene that is used in various systems of radiant heating, domestic piping of water and insulation of high voltage. The life of such piping is more than the life of copper piping as it is very compatible against harsh environmental conditions.

Thanks
RoofStuffInc.com

[ROBERT V. YOUNG]

Stephen you see no problem with pex piping resting onto each other.
One looks compressed.
They well expand and contract causing a friction point or spot and ware.
They should have been separate and been clipped to the wall unless they are fastened in-place above or below. Forget the distance. 48 inches?

http://www.pexuniverse.com/store/category/accessories

[Stephen W. Stanczyk]

No, that is not compressed. You can see the termination of the black plastic fitting and the pex tubing is just flared around it and returning to normal size. Not flattened and not an issue although as I stated before, I would much rather have seen the pex run underneath the fire line. If it is a cold water supply, there would be no expansion or contraction at all.

[ROBERT V. YOUNG]

Maybe its the photo and my new cheap computer.( the machine is in the shop ) Warranted.
I see the orange piping slightly dented as if it was compressed slightly.
Sorry.

[Stephen W. Stanczyk]

I think it is an optical illusion from the shadowing. I don't think that schedule 80 would dent or compress under the weight of some light weight pex.

[clambert2]

Make sure no sunlight is coming through the roof/gable vents onto the PEX as is has only a six month sunlight exposure limit.

Chuck

[Stephen W. Stanczyk]

If they have enough direct sunlight coming in through the vents to affect the pex tubing, they have bigger problems to worry about.

[Gary Farnsworth]

You should check water pressure on any system with plastic lines. I realize it is over SOP's, but most inspectors check pressure. Should be at least under 80 pounds. I like it to 65 pounds with plastic. High readings should be regulated accordingly. Highest reading I have had was at 143 pounds.