gray pipe

Polybutylene is an inexpensive, flexible plastic that was used for residential piping from 1978 to 1995.

It was found to be extremely vulnerable to ruptures, which led to a class-action settlement and the material is no longer accepted by U.S. building codes.

Polybutylene pipes can be blue, black, white or gray, but they always have the letters “PB” on a printed label on the pipe. The easiest way to determine whether you have polybutylene pipes is to check the pipes near the water heater, the sink connections or at the main shut-off valve or water meter.

If you have polybutylene piping, we highly recommend that you replace it as soon as possible.

Professional Plumbing & Design has the experience and equipment needed to repipe water lines and drain lines under mobile homes, in crawlspace homes, overhead in slab home attics, and under the floors of multiple floor homes and condominiums.


For more information, call the professionals at 941-355-5400 or visit