connect priming hose, Take mushroom filter off water input hose(in solution tank), turn pump on and pour water down tube using a jug, should start see water come through priming hose within 30 sec. remember to ensure priming hose is going back into solution tank. once coming through turn pump off. replace mushroom filter and seat hose back into position within solution tank. ensure water level is above filter, turn pump on and re-prime. then away you go.