On Sat, 26 Dec 2009 10:59:33 -0800 (PST), Joe wrote:

On Dec 26, 12:44*pm, Tomas wrote:
I have shutoff valves that are now heavily corroded and do not fully
shut-off. My home was built in '92. While researching how to remove
the "crimped" on valves, I found several older posts about
polybutylene (Quest) and how it's no longer used and in many cases not
up to code (for interior use).

I'm hesitant now to mess with these valves. It's seems the time period
has expired for the class action lawsuit. Is there any recent
information on this? From what I've read, it's not a matter of if
there will be a problem, but when.

Google is your friend. Type in polybutylelene plumbing and follow the
prompts.

Joe

http://lmgtfy.com/?q=polybutylene