Whole House Water Shut Off The Taco FloodBreaker ® is a whole house adjustable leak protection system that monitors several aspects of water usage. It shuts off the water supply once any of the monitored settings are reached. The FloodBreaker ® Whole House Water Shut Off is NSF 61-G certified. FloodBreaker ® Whole House Water Shut Off is a whole house adjustable leak detection system that monitors several aspects of water usage. It shuts off the water supply once any of the monitored settings are reached. Use FloodBreaker ® Whole House Water Shut Off to protect homes from water damage, eliminate waste and protect unoccupied or vacation properties. Not only can it protect against a large catastrophic leak but is capable of protecting against the small unnoticed leak that could go on for weeks, months or even indefinitely.