Pumps Buying Guides

Power outages happen during storms -- exactly when you need your sump pump most. A battery backup sump pump activates automatically when the primary pump fails or power goes out. Combination systems include both primary and backup in one package. This is the single most important sump pump add-on for any home with a finished basement.

A sump pump is the last line of defense between your basement and a flood. When it works, you never think about it. When it fails during a heavy rain, you are looking at $5,000-$25,000 in water damage. The best sump pump is the one that runs reliably for 7-10 years without attention. That means quality construction (cast iron or stainless housing, not plastic), adequate horsepower for your pit volume, and a float switch that does not stick. Here are the top picks across every type and budget.

Pump performance is measured in GPH (gallons per hour) or GPM (gallons per minute) at a specific head pressure (vertical lift). A pump rated at 3,000 GPH at 0 feet of head may only deliver 1,500 GPH at 10 feet. Understanding this relationship is essential for choosing the right pump.

Standard sump pumps handle clean groundwater. But some situations require specialized pumps: sewage ejector pumps for below-grade bathrooms, effluent pumps for septic systems, and booster pumps for low water pressure. Each is purpose-built for a specific job.

Submersible pumps sit underwater inside the sump pit. Pedestal pumps mount above the pit with the impeller reaching down. Most homeowners should choose submersible -- they are quieter, more powerful, and fit under pit covers. Pedestal pumps are for narrow pits where a submersible will not physically fit.