Best Sump Pumps in 2027

The Wayne CDU790 leads our ranking. Its 1/3 HP motor is rated up to 4,600 gallons per hour, the highest of any single pump on this page, and it can lift water up to 20 ft, enough for most basement discharge lines.

Its top suction design draws water from above the pit floor, which Wayne says eliminates air lock and reduces clogging from debris that settles at the bottom. The motor housing is corrosion-resistant epoxy-coated steel with stainless steel fasteners and a cast iron volute, which suits a pump that sits in water for years. A vertical float switch turns it on and off automatically.

It has a 1-1/2 in discharge, weighs 16.4 lb, stands 11 in tall and is assembled in the USA with a 3-year warranty. Its 8 ft cord is the shortest here, so check the distance to your outlet, and plug it into a GFCI-protected outlet as local codes often require. For most homeowners replacing or installing a primary basement pump, it is the best choice on this page. Test it every few months by pouring a bucket of water into the pit.

Second in our ranking, the Acquaer 1/3 HP pump moves up to 2,160 gallons per hour. Instead of a float, it uses a built-in electronic sensor that turns the pump on when it detects 1-1/2 in of water and off when the water is gone, so there is no float arm to jam against the pit wall.

Its bottom suction design pulls water down to a shallow level with a debris filter, and a temperature control protects the motor from dry running. It has a 10 ft three-prong cord, a 1 in NPT discharge and a 3/4 in garden hose adapter, so it can run through a garden hose as well as a pipe.

The housing is thermoplastic and it stands only 7.3 in tall, the shortest here, which suits shallow pits, window wells and flooded rooms. Acquaer lists a 3-year warranty. Its smaller discharge and plastic body make it more of a utility pump than a heavy-duty basement sump pump. For homeowners who want automatic operation in a small or shallow space, it is a handy option. Keep the intake screen clear of silt.

The Zoeller M53 Mighty-mate ranks third. Zoeller is one of the best-known sump pump brands, and the M53 is built from cast iron, with a cast iron switch case, motor and pump housing on a plastic base.

Its 3/10 HP motor moves up to 2,580 gallons per hour and lifts water up to 19.25 ft. The non-clogging vortex impeller passes solids up to 2 in, the largest on this page, which matters in pits that collect gravel and silt. A float-activated switch turns it on automatically.

At 21 lb it is the heaviest single pump here, and cast iron also sheds motor heat into the water, which helps it run long cycles. It has a 1-1/2 in discharge and a 9 ft cord, stands 10.25 in tall, and our data does not list its warranty. For homeowners who want a proven, heavy-duty basement pump, it is a strong choice. Make sure your pit is wide enough for the float to move freely, and fit a check valve in the discharge pipe.

Fourth in our ranking, the Liberty Pumps 237 is a 1/3 HP submersible sump pump built for residential groundwater and basement drainage. Liberty is a well-known US pump maker.

It uses a vertical magnetic float switch, which needs less pit width than a tethered float and has no arm to snag, and a vortex-style impeller that reduces clogging and improves flow. Its deep-finned, powder-coated aluminum motor housing sheds heat and resists corrosion, and the motor has thermal protection.

It has a 1-1/2 in discharge, passes solids up to 3/8 in, weighs 11 lb and stands 13.5 in tall, so check the depth of your pit. Our data does not list its flow rate or lift height, which makes it harder to compare. For homeowners with a narrow pit who want a reliable float switch, it is a good option. Fit a check valve in the discharge line so water does not run back into the pit when the pump stops.

The BTAEGH 1/3 HP pump completes our top five. It moves up to 2,400 gallons per hour and lifts water up to 25 ft, the highest lift on this page, which helps when water must be pushed up and out of a deep basement or onto a rooftop drain.

It is a portable utility pump rather than a permanent sump pump. The body is tough thermoplastic with a carrying handle and a 10 ft cord, and it weighs 7.5 lb. A detachable bottom screen filters debris and handles solids up to 1/8 in, and thermal protection guards the motor.

BTAEGH lists uses such as pools, cisterns, basements, crawl spaces, rooftops and window wells. Our data does not show an automatic switch, so plan to run it while you watch it. It has a 1-1/4 in discharge and stands 10.4 in tall. For clearing standing water from many places around the house, it is a handy tool to own. Keep a primary sump pump in the pit and use this one for cleanup.