FloodStop valves are point-of-use water detection devices, meaning you can install them next to any water fixture in your home that you are concerned about and want to monitor. FloodStop valves can be installed on the supply lines for: -Water heaters -Toilets -Washing machines/Refrigerators & ice makers -Dishwashers -Sinks A motorized ball valve will be installed on the supply line, which is connected to a highly sensitive water detection sensor. This sensor can detect the smallest drop of water, and will automatically trigger the ball valve to close. It will also sound an alarm to alert you of the problem.