Trash Pumps are used where water containing solids such as sticks, stones, mud, sand, gravel and other foreign material is present. Trash pumps have the capabilities of ordinary centrifugal pumps, with the added ability to handle solids of up to about half the suction inlet size.  The convenient wing nuts on the pump housing allow quick, easy access for clearing the pump end.  Riverside Pump models TP2H, TP3H, TP3B, TP4V include a low oil protection system to help guard the engine against damage from operating with insufficient oil.