Dependable Submersible Pumps you can count on in the toughest applications. Use a submersible pump when you have high suction lift requirements that are beyond what engine-driven pumps can do over 8 meters depth (25 feet). Submersibles are designed to be lowered into the water and will push up the water (instead of drawing or sucking up the water) with the liquid being brought into the unit at the very bottom of the pump.