Mark, I am very sorry to hear that you are also having problems. Was the pipe labeled NIBCO? We had our hot water pipes replaced (all of them!). Our plumber donated their labor which was awesome and the plumbing supply donated the pipe which was also wonderful. This was after we spent about $5000 with an attorney trying to get the manufacturer (NIBCO) to take responsibility - they denied any. We had out sheetrock repaired and everything repainted (this was at out expense), and I am happy to say that it looks like nothing ever happened. I think that a group should be formed to document all of the leaks and damages and maybe as a group we can go after them. I think they are in for a great deal of problems going forward.