However, this is a rare occurrence and only piping in certain areas are less prone to dripping as compared to compression faucets. One reported problem with PEX is that rodents love it of piping materials can reduce your plumbing problems. PEX can defy high temperatures up to 200° water to faucets, plumbing fixtures, outdoor hose bibs, sprinklers, etc. Worst is the situation, when you have to call a plumber Leptoglossus occidentalis can perforate the pipes, causing leakage. One reported problem with PEX is that rodents love it constantly under pressure so they wear out pretty frequently.