How To Check For Polybutylene Pipes. Normally, the blue pipes were used outdoors, and the other two colors were used for indoor plumbing. According to propex, polybutylene piping is typically found in the following locations:
An inspector can use the following tips to identify polybutylene plumbing. Here are other ways to tell if you have pb pipes: It is wise to check at both ends of the pipe because we have found cases where copper pipe enters the home, and poly pipe is at the water meter.
From the late 1970s to 1995, polybutylene pipes were a popular low cost alternative to copper piping.
Check any suspected polybutylene pipes for identifiable stamping on the flexible, plastic material. There are two ways to identify poly b™ pipes quickly: Also, you should check at the water meter that is located at the street, near the city water main. As stated above, polybutylene pipes are flexible, plastic resin pipes that could have been used on the interior or exterior of the home.