FYI, we have been finding small leaks in pex from rats that have been searching for water as they dehydrate from Decon . Decon will soon be out of the stores but the new stuff may cause the same issues. Brought this up at our last training seminar and it seems several others have noticed this also.
Gee. Unfortunately, rats will gnaw on most plastic most any time they feel like it. The Decon may be aggrivating the problem but seems that getting the rats out might be first priority.