Pot Filler Bomb?

[jackcmorgan]

Built a new home recently and my wife had to have a pot filler mounted behind the stove. All was well until Christmas dinner was being cooked with pots boiling all day on the cooktop. The pot filler faucet sprung a leak after one of the elbows physically separated - apparently due to pressure buildup. There are two valves on the faucet - one at the wall and one at the spout. This obviously creates a space with no expansion room for the water within. All the faucets I've seen are designed this way. Yes, the cooktop has adequate ventilation (1000 cfm). Thoughts?

 

[Tuttles Revenge]

I've never heard of this. I would suspect thermal expansion could cause this. I know the unit at my sisters house they only use the valve on the wall.