I live in a small town on the outskirts of Memphis TN. My subdivision and
house is less than three years old. My step daughter lives in a subdivision
across the highway from me, less than a half mile. Her subdivision is
approx. 6 or 7 years old. She has had three water leaks in about six
months time, her next door neighbor has had two, at least a half dozen more
has had to have their house replumbed. The Mayor has said it isn't the
water that it's been tested. He said the leaks are the result of cheap
imported copper. I have talked to the owner of the plumbing company that
did some of the roughing in and top outs in that neighborhood and his
company did my step daughters house. He said it was the water. It's only
been the copper tubing that's is under the slabs. I've stopped and talked
to another plumbing company worker that was re piping another house and he
seems to think it's a galvanic reaction in the soil. Another plumber told
me it was probably due to tubing not having the plastic sleeving on it and
came into contact with the cement of the slab. Now all new homes have to
have cpvc used, no copper. Any other ideas of what might have caused such a
rash of leaks in such a short amount of time?
Do you happen to know if it's the tubing that leaks. Some morons put
solder joints under a slab, but the rule is no joints underground. If it's
the tubing, then, perhaps, the pumber used thinner than "K" copper.
Usually, copper is impervious to soil and concrete. BTW, are you saying
that the CPVC is now under the slab?
It's pin holes in the tubing. They use type L soft out here under the
slabs. So with 60 foot rolls there isn't any solder joints under the slab.
Or shouldn't be. And they are using rolls of cpvc under the slab now.
Here in the uk in the 1970's we had that problem...it was caused in the
drawing process of the copper tube, although I don't understand the
production process there was sand inclusions in the copper which gave rise
to these pinhole failures after a short service life.
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