Re: Quest Polybutylene Date code stamp 9-27-89
Posted by John on May 26, 1999 at 11:00:40:
In response to Re: Quest Polybutylene Date code stamp 9-27-89
: My house was built in 1990 it has "Quest Polybutylene Date code stamp 9-27-89" with both metal and plastic fitings. IS this tubing OK?
NO. Regardless of the date stamp code, the manufacturing process and extrusion of the tubing was still the same. I would keep a good eye on your system, checking it daily for signs of leaks. You also may want to look around and try to find any repair fittings indicating that the plumbing has had problems in the past. If you would like to research the problems of polybutylene click on the link provided below or email me with your questions at

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