We've tested and reviewed products since 1936. Read CR's review of the Basepump Water Powered Backup Sump Pump RB750 sump pump to find out if it's worth it.

We've tested and reviewed products since 1936. Read CR's review of the Liberty Pumps SJ10 Water Powered Backup Sump Pump sump pump to find out if it's worth it.

Some sump pump backup systems, though, are water-powered. They use the pressure from your home’s municipal water line to drive the system, much like a water wheel.

Like backup pumps, if the primary pump malfunctions or a power failure occurs, the backup pump will automatically activate. Sewage Sump Pumps Sump pumps are also used for sewage and septic systems.