What would cause a hot water supply line to burst on a bathroom faucet repeatedly? It has happened 3 times. The original faucet is a GROHE 33-413 installed less than 10 years ago and subsequently replaced twice. Now it has burst again. We 2 have more of these GROHE faucets in our house that are fine. The supply lines are part of the faucet and are a braided metal mesh over plastic line. What could be done to prevent it from happening again?