I just had a plumber at my home to fix a leak in a valve to a sprinkler system. He noticed that I had poly butyl piping and told me there was a class action suit over this material. He told me this because for a while it appeared my leak was under the house because the water was draining from that direction. Now my concern is that I could have a problem in the future and I am seeking more information on this matter. I have a neighbor who has a leak apparently in her home because she has damp carpet near her bathroom. Any information would be appreciated. Thanks.