UPVC Pipe Systems - General characteristics - Rubbersurat Blog

O-fitting's reply may be somewhat confusing or misleading.

Let's clarify:

You stated:

"PVC water piping throughout. These pipes are used for hot and cold water."

and you wondered if that was ok.


And then O-fitting's reply that

"PVC for water supply is OK no worry."


Let's clarify that:


PVC is NOT allowed INSIDE of the house for hot/cold drinking water.

Period.

In many areas of the U.S. PVC is allowed as the "supply" TO the house.

That is when:

for cold water only, underground (buried), not under the house but outside of the house.

PVC and CPVC can and are confused many times by novices.

If the pipe says PVC on it, then it is NOT legal for hot and cold water "throughout the house."

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To answer part of the question about health risks with PVC (or CPVC for that matter).

In general, today, most believe it to be safe........ but there is some controversy regarding that (as well as with the solvents/primers).

Some say that all plastics are unhealthy. Most say that they are perfectly fine.

Others say that dioxins are a byproduct of the manufacturing of PVC. and therefor that PVC ought not to be manufactured

PVC is Poly-Vinyl-Chloride and both of those ingredients are somewhat controversial.

We give plumbing advice and frankly don't want to get into debates about plastic health issues as there is no definitive answer currently.

Do recognize that copper in large doses is considered toxic by all, including the EPA, and so when piping very aggressive water through copper pipes the water can leach out large amounts of copper.

What is the "best" piping to use for potable water?

Good question and there is no definitive answer except to never use PVC for hot water or copper piping for very aggressive and low pH water.

All plumbing codes that I am aware of will not allow PVC (no matter how thick or pressure rated) to be used INSIDE of homes for potable water.

Check the pipes, I'm guessing they are CPVC and not PVC.

Vic

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YOu are right hj, most of my neighbors here in AZ do have that for water service underground. I know because in the 6 weeks I have been working here, I have had to replace 3 of them, all in homes less than 8 years old (one was 3 years old). In Chicago where I lived and worked prior to moving here, an inspector catching a plumber installing that for a water service would crack up laughing, right before he told you to rip it out. In a way I am GLAD they use that here, it has been keeping me busy!

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Once your home construction work is completed, the second step is to install the piping network. The choice of piping materials determines the type of installation as well as required maintenance. When it comes to choosing the piping materials, PVC pipe is the first choice for many people.

PVC pipe system can be produced in a lot of colors and you could easily recognition it after take a look:

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