[quote=Scarlett]For some reason I thought the PB plumbing was introduced in mid 70s.[/quote]
All you ever wanted to know about PB:
“Polybutylene pipe is grey, black or blue. Interior polybutylene plumbing is almost always grey and exterior polybutylene plumbing is mostly blue.
Polybutylene pipe was installed and manufactured from the late 1970’s till the mid-1990’s, however, stockpiles of polybutylene pipe at supply vendors, such as supply risers were still known to be available up to 1999.
The most common sizes for polybutylene pipe are 3/8″, ½”, ¾” and 1″.
Polybutylene piping was used for both residential and commercial water distribution piping.
Polybutylene pipe connectors can be copper, brass, or plastic. The connector types are barbed with a crimp ring or compression with a plastic or metal ferrule.”
In PQ area most PB was installed mid 80’s. Know someone who just bought a house and had Bill Howe Plumbing replace PB pipes. Have to ask, but probably in 6-8K plus extensive drywall repair.
