ABS Pipe Home › Forums › Archives › Old Bulletin Board Archives › ABS Pipe This topic has 0 replies, 1 voice, and was last updated 27 years ago by Phillip Hannam. Viewing 0 reply threads Author Posts 21 Sep 1997 at 5:33 am #282995 Phillip Hannam Discovered home with 2 Gable ASTM D2661 and 1 1/2 Polaris ASTM 2661 84a vent pipe. Home was built in 1987. Sacramento Calif. Is this pipe defective? Author Posts Viewing 0 reply threads The forum ‘Old Bulletin Board Archives’ is closed to new topics and replies.