John & thirdeye, I think you have both hit the proverbial nail. We're not in as deep as Deb yet, but are getting close. Some of this pipe had literally split at "seams" in between welds with a stress of less than 1/4 of yield(figured by stress= PR/T). Looks like we will get new pipe,hopefully not from the same source,and start over. Thank you both very much for sharing insight and knowledge with us. I stand in awe at the level of wisdom that abounds in this forum. Makes me think of those two dumb kids on their knees with hands up reciting "we're not worthy'! Thanks again, Klay