How they work: Battery-powered systems use a float switch to activate the pump when the water level in the sump pit rises. Drawing power from the battery, the pump discharges the water through the ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › A good sump pump is invaluable in times of flooding to prevent the damage caused ...

Before you panic and call the plumber (minimum charge $250), make sure the “float” switch works. Most sewage ejector pumps and some sump pumps have a floating ball attached to the pump by a ...