There are two main types of sump pumps: submersible and pedestal. Submersible sump pumps are placed directly in the sump pit and are designed to be submerged in water. They are typically more powerful, quieter, and hidden from view. Pedestal sump pumps, on the other hand, have the motor located above the water level and are mounted on a pedestal or column. They are generally less expensive, easier to maintain, and can last longer.