Qest grey piping lawsuit Home › Forums › Public Forums › General Plumbing › Qest grey piping lawsuit This topic has 2 replies, 3 voices, and was last updated 23 years, 12 months ago by linda. Viewing 2 reply threads Author Posts 21 Jan 2001 at 11:49 pm #274467 MasterPlumbersKeymaster I am looking for info on a class action lawsuit on “Qest” grey piping to water heaters/heat pumps help? 21 Jan 2001 at 11:56 pm #289801 fourth yearParticipant When was the house built? 25 Jan 2001 at 4:19 am #289802 lindaParticipant I also am looking for information on the grey polybutalene. My whole house was plumbed with it. Please forward any information that you have on it. I was referred to Brass Craft, Novi, Michigan, but have not received a response. Author Posts Viewing 2 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In