The utility model discloses a water installation is crowded to mop, including mop pond and mop molders bulb, the mop pond by interior outside to in proper order for the inner circle, fill layer, outer lane, fixed setting of mop molders bulb be in the top in mop pond, the mop molders bulb include fixing device and pressurized -water device, fixing device include the support frame of two relative settings, the support frame be right angle triangle skeleton, be provided with the fixed plate that the slant was arranged between the front end of two support frames, the pressurized -water device including setting up two pressurized -water board, action bars and pressurized -water board axle between the support frame, the pressurized -water board be the rectangle steel sheet, pressurized -water board one end is connected epaxially at the pressurized -water board, the rear end at two support frames is rotationally connected at the both ends of pressurized -water board axle, form crowded water space between pressurized -water board and the fixed plate, the one end welding of action bars is epaxial at the pressurized -water board, and its other end upwards extends to the outside of pressurized -water board.