The cold water manifold in my home had a leak due to cracked polybutylene
compression fittings in the cold water manifold, more like a mess than a
manifold, coming into the house. I have since built a copper manifold to
install. At some point in the future I plan to remove the poly tubing and
replace with PEX. For now what is the best way to connect the poly to the
copper. What is there now is the plastic and brass compression fittings
originonally installed and the solid brass fittings I used for repair. Also
I removed a 14ft piece of the poly that fed a bathroom and laundryroom.
These pieces are 15 years old and when I examined them they appeared as new
inside and out. I understand I may have some legal recourse to get the
replacement paid, until then I just want to get this boobytrap out of my
wall before some more of the plastic fittings crack. So what is the best way
to transition from the poly pipe to the copper manifold. About 10 years ago
I used all brass compession fittings when I replaced the tub fixture and
have had no problems with it. Also all of the fixtures are fed by lines home
run to the manifold, would it be OK to install shutoff valves at the new
manifold. I was thinking this may be a good idea in case some of the other
platic fitting crack elsewhere in the house.
BTW The orional fittings showed quite a bit of oxidation on the inside while
the pipes show none. Is this normally the case with polybutylene. Is it the
fittings that cause the problem?
Sounds like you should waste no time in getting rid of the polybute
this pipe is very much a time bomb . besides it would be easier to make
the change over. Put the shut off,s by the appliances , the pipe has a
promblem it is long term exposure to hot water.
Jimmie D wrote:
Really, I thought it was long exposure to Chlorine. So far the hot water
manifold is unaffected, Just the fittings on the cold side have been a
problem. Its obvious there has been some serious oxidation going on in the
fittings but the pipe seems to be OK. Is this usually the case.
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