REPLY: You might want to visit the Poly Info Central website at www.polybutylene.com. Basically, if you have poly, it will eventually leak. Celanese, one of the manufacturers of the fittings, has now admitted in court that the product is defective "from the moment of installatin."
: I live in a mobile home that has polybutelene pipes.
: I have already called about this fan they say it to late to report this. Anyway. I want to redo the piping in the house slowly. Little by little. What would you do it with?