Posted by Jim Locker on January 23, 2001 at 16:35:08:
Poly-something with bad HVAC properties?
Hmmm…you’re confused about something. HVAC stands for Heating Ventilation Air Conditioning.
Now Poly-something could be polypropylene which indeed is bad news. However, I though that problem had been solved a decade ago.
Polypropylene plumbing was advertised as the wave of the future for awhile. What the manufacturer knew - and didn’t tell - was that (I forget all the details) there was some kind of reaction between the fittings used to connect this pipe and oxygen in the water which caused the fittings to rapidly deteriorate. Any house plumbed with this stuff acquired massive plumbing problems after only a few years.
If the house is plumbed with polypropylene and metal fittings, however, there will be no trouble.
However, it seems to me that the house would have to be older than five years to be having this problem…anyhow, if that’s it you will likely have to replace all the plumbing.