A self-priming pump is able to overcome the problem of air binding by mixing air with water. After it gets rid of the air, the pump will continue to move water like a standard centrifugal pump.It is important to note that self-priming pumps can’t operate without water.Self-priming pumps can handle a variety of fluids and they do well with slurries, corrosive fluids, and solids.Solids handling is one of its most important advantages, as some self-priming pumps can handle solids up to 3 inches.Another advantage, when compared to a submersible pump, is its ability to continue pumping fluid while pump is still situated out of the pit.