Submersible Water Pump 1/2 HP 2301 GPH

Sump pumps are used for removing groundwater from basements and crawlspaces. They can be fully submerged in water.

Sewage pumps are used to lift household sewage water from a collection basin and send it to a gravity-fed sewage line or septic system.

Utility pumps are used for removing water from flooded areas, spas, and window wells. They can be fully submerged in water.

Well pumps are used to draw water from a well or cistern that is less than 25 feet deep. They are connected to a pressure tank system and run automatically with a factory-installed pressure switch.

A pump that is labeled “submersible” can be submerged completely underwater. However, the pump must be plugged into a GFCI protected outlet to prevent death or serious injury from electric shock.

Pumps can build pressure to lift water (measured in feet of head lift), or they can create flow (measured in gallons per hour – GPH). Pumps can also do a combination of lifting and flowing with their output power. If a pump uses more power for lifting water, it means there is less power to create flow. A pump Head versus Flow chart shows how a pump’s output flow will decrease as it uses more power for lifting. Hose/pipe length, reducer fittings, and elbow turns will increase head lift and therefore reduce output flow.

This may be a symptom of a sump pump with no check-valve on the discharge pipe. A check-valve is a one-way valve that prevents backflow when the pump turns off. If the pump is turned off without a check-valve present, the water in the discharge pipe may backflow into the basin, activating the float switch to turn on the pump. To prevent cycling caused by this condition, install a check-valve.