Basement Watchdog Bw4000 Review - Quadruple Float Switch Protection What is the first thing that generally fails on a sump pump? Do you worry about the pump float switch failing while you are on vacation? Have you ever struggled with replacing a switch during a heavy rainstorm? Have you been home when the float got stuck and burned the pump motor up because you were sleeping? No float switch lasts forever! So what is the solution? Pump manufacturers address this issue in many ways. Some pumps are designed to be thrown away when the float switch fails. Others have replaceable float switches which the manufacturer recommends changing every two to three years. Some have piggyback switches which allow the home owner to run the pump manually until it is replaced. The Basement Watchdog BW4000 combination pump is very unique. It has a total of four float switches. Two for the primary sump pump, Basement Watchdog BW1050, and two for the battery backup sump pump, Basement Watchdog BWSP. If one fails the next one begins operation automatically. No manual intervention is required by the home owner. How cool is that. In addition, the dual float switches for each pump are contained in a cage not attached to the pump. Thus the home owner can select the height for placing the float cage on the discharge pipe. Replacing the float cage is quick and easy with no removal of the sump pump from the pit. The cage also provides protection so the float does not get caught on the sump basin wall, on pump cords or get obstructed by debris. This pump system not only provides quadruple float failure protection, but it also has other desirable features. The Watchdog BW1050 primary can pump 3,200 gallons per hour at a 10 foot lift, the Watchdog BWSP battery backup pumps 1,730 gallons per hour at a 10 foot lift. The BW4000 footprint is compact requiring only a twelve-inch diameter pit that is 18 inches deep. It comes pre-assembled as a unit. It just requires one connection to the main discharge pipe. The controller for the backup pump sounds an alarm when the battery backup BWSP is running because the primary pump is inoperable, the battery power or fluid is low or the fuse or circuit breaker has failed. The primary pump has a permanent split capacitor motor, dual seal motor protection, dual ball bearings increasing its life, and thermoplastic housing. It has many more features; however, I chose to highlight only these. As for customer satisfaction, in checking customer reviews on the internet I found this pump rated at a 93% satisfaction rate. Consumers are happy with the float switch design and the pump as well. The innovative quadruple float switch protection does provide great protection for the home owner. If one float fails there are three others to back up it; two with the primary submersible pump and two with the battery backup sump pump. The pump can stay in the pit during replacement; only the float switch cage needs removal and replacement. The BW4000 truly provides peace of mind and quadruple protection.