The Keystone KST (Self Priming Trash Pump) provides maximum performance for de-watering and solids handling applications without clogging. The KST pumps are installed above the sump, which provides ease of installation and maintenance. The KST self priming design allows for re-priming of the pump without the requirement of suction or discharge check valves.  The KST pump comes in an array of materials of construction for all industrial applications.