That's why it's important to keep an eye out for signs of a malfunctioning unit. This will give you enough room to fit the base of the pump and the discharge pipe. You can also use concrete to fill the area around the sump. Submersible pumps are more powerful and can fully submerge in water. It is important to keep in mind that the sump basin should be at least 10 feet away from the walls. Your contractor will then clean up the floor afterward. Older homes might not have considered this option. This will help you decide if you want to make the investment. This is especially helpful if you have an unfinished basement. You'll also want to connect a GFCI outlet to the pump.