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Posted by Jimmie D on October 1, 2006, 12:02 am
> 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.
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.
> Jimmie D wrote:
>> 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.
>>
>> TIA Jimmie
>>
>> 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?
>
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