Built in 2010 up the hill with many hands at a weekend festival. It holds around 40,000L from a bore pump working on solar and gravity feeds into the house and irrigation in the garden.
A slab was put down by aour neighbour Robbie and his dad the week before and on the weekend a frame of rio mesh with chicken wire was put up and concrete mix pushed into the mesh and smoothed over to create a wall about 5cm thick. We’ve never had a leak or a crack.
The overflow runs down a pipe into the dam.