A bracket is provided at the discharge side of the pump. At the centre of the bracket a rubber ring is mounted. A pedestal is fixed to the bottom of the plate by foundation bolts, which are grouted. The pump is lowered into the pit through a guide rail pipe. On reaching the pedestal the bracket engages into the pedestal and the rubber ring prevents leakage of water. The pump can be lifted back by pulling it out without remoal of any nuts or bolts.