All Basement Watchdog combination systems come with two built in check valves. It is highly recommended to remove the existing check valve. Not only will it reduce the pumping capacity of both pumps but it can cause pressure problems or air lock.
The Basement Watchdog
All Basement Watchdog combination systems come with two built in check valves. It is highly recommended to remove the existing check valve. Not only will it reduce the pumping capacity of both pumps but it can cause pressure problems or air lock.