TurboPackMan: I don't regard this process as "finding the weak points". ANY system run at over twice its intended pressure is going to fail somewhere. At 7 psi, it might have been, and probably would have been, just fine. This is like pumping up a tire rated for 40 psi to 90 psi and then saying we "found the weak point" when it blows. That's not a valid test of the tire's integrity.