A shower assembly includes an inlet port, a reservoir, a valve, a plurality of first outlets, and a plurality of second outlets. The inlet port is for receiving water from a water source at a source flow rate. The reservoir is for receiving the water from the water source through the inlet port. The valve is for controlling a flow rate of water from the inlet port to the reservoir to maintain an unpressurized reservoir. The plurality of first outlets are configured to continuously pass water from the reservoir. The plurality of first outlets have a first collective flow rate that is approximately equal to the source flow rate. The plurality of second outlets are configured to selectively pass water from the reservoir simultaneously with water being passed from the plurality of first outlets.