07:04AM | 08/21/06
Member Since: 08/20/06
2 lifetime posts
Building new home - plumbing here is underslab- does anyone have any views or opinion on CPVC under the slab- it seems that joints under slab may become a problem down the road as compaired to pex which does not have joints or connections under slab -any thoughts?


09:52AM | 08/21/06
Member Since: 01/24/06
1548 lifetime posts
It must take a certain type of mind set to want to bury piping that may fail and then have the slab opened again.

I like the idea of creating work for future generations of mechanics and burying plastic seems like a great way to get rid of toxic waste.

After the plastic fails give me a call as I do work as an expert witness and do not mind telling the contractor I told you so as we are in open court Why not give grean peace a call and see their views on "plastic"


10:52AM | 08/21/06
Member Since: 08/20/06
2 lifetime posts
Were you trying to be funny or are you just not familiar with slab construction? I admit I would rather not place plumbing underslab but it is a common contruction practice, at least in this part of the country.


03:07PM | 08/22/06
Member Since: 01/24/06
1548 lifetime posts
I talked a building owner out of placing heating and water supply lines in a slab as I explained that the initial cost is not what is great for longevity.

All one has to do is look up lawsuits from "state of the art" under slab failures.

What I did do was convince the building owner to place the piping in the ceiling and drop the lines down for the water supply in this scenario if there is a leak it would be quite easy to locate and repair and insulation keeps hot pipes hot and cold from sweating.

About the heating lines, I put base board cast iron on the lowest level (or copper fin if they wanted cheap) and then anything above the ground radiant plastic or copper or cast iron or scorched air if they were seeking bottom of the line heating and ac

One only has to think "WHEN not if it going to leak"?

and NO I do not joke about plumbing as I make a very,very good living fixing mistakes made by home builders and going to courts as an expert witness taking "state of the art" plumbing / heating / drainage material installed improperly as I find it much easier to hold the installer /designer responsible then the manufacturer, with product liability clauses make it is not very profitable going after a product made in a foreign country most of the time..

Ask around about the law suits where plumbers installed under slab heating piping and water systems that folks had to redo.

You asked for an opinion I gave you mine.

See these pictures imagine if the piping was leaking below the slab... As it is I charged $4067 to make these repairs


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