Do any of the Flood stop models provide for power backup? It appears that either the batteries are inserted OR AC power is available, not both.
The FloodStop “controller” does a quick close/open cycling of the valve once per month. This is a self cleaning operation that insures any buildup (like calcium or scale) is wiped off. Note that this once a month cycling happens when the valve is in the open position, which in almost all cases it would be. […]