Home>Discussions>PLUMBING>any disadvantages to Pex plumbing?
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johnjh2o
Re: any disadvantages to Pex plumbing?
johnjh2o
Fencepost wrote:

Copper isn't a panacea, either.

Certain water conditions may cause corrosion of copper, or react with the copper to leach harmful copper compounds into the water.

Some plastics indeed are harmful, but polyethylene is considered a food-safe material by the FDA. Milk jugs are made of polyethylene; paper milk cartons and the lids of glass milk bottles are also coated with polyethylene. Cross-linked polyethylene is even more stable and less likely to leach harmful compounds into the water.

Know that's something I didn't now. Thanks Fenchpost

keith3267
Re: any disadvantages to Pex plumbing?
keith3267

Polyethylene is also used in artificial knee, hip and other joints inside the human body, it is the cushion between the metal parts.

Rekonn
Re: any disadvantages to Pex plumbing?
Rekonn

Srry for resurrecting old thread, just thought of something related. Does anyone cover PEX in steel conduit or something similar? I wonder if that would address the durability weakness of PEX? It would suck to have to tear into a wall looking for a leak caused by a rodent or an errant nail.

bcarlson78248
Re: any disadvantages to Pex plumbing?
bcarlson78248

There is another version of PEX (PEX-AL-PEX) that is designed for use in hot water heating. It has a flexible aluminum core surrounded by the PEX plastic on both sides (in and out). That design provides additional durability if you are concerned about an animal eating the plastic coating and causing a leak. However, I assume its also quite a bit more expensive than standard PEX.

Bruce

t_manero
Re: any disadvantages to Pex plumbing?
t_manero
guy48065 wrote:

I'll remember that next time some environmentalist tries to convince me poly lasts forever.

Plastics do not degrade to a non-toxic or non-contaminating form . . . And environmentalists can claim some credit for removing lead, reducing benzene, etc. in gas formulation, among other anti-freedom initiatives, so American kids can choose to lower their IQ by other means than breathing air.

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