OnSite PRO designed and sold its first flood protection device in 1999, and has sold 1 million units, with over 1.1 million motorized brass ball valves. Patented design offers an automatic maintenance cycling of the valves every 30 days to keep debris and hard water from creating problems within the valve. The other protected claim for FloodStop is the adjustable sensitivity for the water sensors. Product line includes systems for water heaters, washing machines and all other household appliances including a whole house kit, will automatically shut off the water supply whenever a leak is detected. Powered by AC and/or batteries. Easy additional sale and protection for any plumber.