The present invention relates to the removal of grease collected in a hydro-mechanical grease interceptor via a pump which may be activated by a programmable timer. In an embodiment, a hydro-mechanical grease interceptor includes a tank having a tank inlet and a tank outlet; a tray positioned inside the tank; and a pump located inside the tank, the pump having a pump inlet and a pump outlet, wherein the pump inlet is located within the tray at a level below the tank outlet. The interceptor may include a timer coupled to the pump to control operation of the pump.