Our original design consists of a submersible pump mounted on a raft and a discharge pipe that floats along the lake surface.
An additional 15m depth of water is available by pumping once the gravity storage is used. The pump is capable of pumping between 110 and 160 L/s depending on the lake level.
A temporary pump was later added because system demands in the summer exceed the capacity of the permanent pump. A second 400mm diameter HDPE discharge pipe was installed for the second pump along the lake surface. The combined capacities of the two pumps varies from 190 to 260 L/s.