Cisterns for the rain water collection system

After we extended the driveway, even a large truck 
can turn around

Each cistern is delivered in two pieces

 Truck loads of 3"minus gravel are delivered
to form a base for the cisterns

Steve working at compacting the base

The base for the cisterns consists of compacted 

3"minus gravel and a top layer of sand

Two 18000 liter cisterns have been placed. 
The 4-foot space in between will become the pump house.