Sump Pump Types | Types of Sump PumpsThe four most common types of sump pumps on the market include the Pedestal, Submersible, Water Powered, and Floor Sucker Pumps. Two of these four sump pumps are electric, one sump pump is water-powered, and the fourth is accessible in either alternative.
Pedestal. The pedestal is a pump that is installed above the water line. The pedestal is an electric sump pump whose motor is located above the pump. The motor of this pump will not continue to operate if it gets wet. The pedestal pump has a float activated switch that turns on the pump when the water level reaches a certain point. These pumps are typically the least expensive but they are usually louder than the majority of submersibles.
Submersible The submersible sump pump is electric. This pump is installed in the ground and is specifically designed to function below the water line. The submersible has the same float activated switch as the pedestal pump. Submersibles tend to cost more, but they usually have a longer life than the pedestal models. The submersible pumps make less noise because their oil-cooled, sealed motors are insulated from dust and moisture.
Water Powered Water Powered pumps run off of water pressure from your own home plumbing system. These pumps have the same float activated switches as the electric sump models, and they handle a comparative rate of water flow. Because these water-powered pumps require no electricity to operate, they are usually installed besides an electric pump and used as a backup system in the event of a power failure.
Floor Sucker Pumps Floor sucker pumps are predominantly used in crawl spaces, cellars, and basements which do not have an actual sump pit. These pumps get their name because they remove water to within 1/8th of the floor (or other surfaces such as the ground or roof). The floor sucker pumps are versatile because they are available in various flow rates, can operate under automatic or manual operation, while some are electronically operated. Cast Iron vs. Plastic Construction Materials Most of the sump pumps available today are available in bodies made of cast iron or plastic. Each of these types of materials have their own strengths and weaknesses. The type of pump you go for may depend on price vs. length of use you want to get out of it. Plastic pumps will be on the lower end of costs, and you may find that they work very well for you for a good period of time. For higher end, longer lasting purposed, you may want to select a cast iron model.
Regardless of which pump you select, they all should have a check valve on the water outlet pipe in order to prevent water from running back into the system when the pump shuts off. The flow of water back and forth may cause the pump to turn on and off unnecessarily and decrease the life of the system.
The type of pump and frame materials should be chosen based on their purpose required of it in your home. You may find quality models out there for all pump types and frames. Some sump pump models out there include the Wayne 3/4 HP Stainless Steel Cast Iron Submersible Sump Pump w/ Vertical Float Switch.