The first step in the design process is to determine the block size. To assist with this, three standard designs are supplied in the manual (Appendix A) with a 50mm valve at a flow rate of 30 cubic meters per hour (Page 1a, 1b), 65mm valve at a flow rate of 50 cubic meters per hour (Page 2a, 2b) and an 80mm valve at a flow rate of 76 cubic meters per hour (Page 3a, 3b).

The layouts are per the drawings in Appendix A .

Page …a:
Reflects the different layout options for a specific flow rate. 

Page …b:
Shows the detailed layout drawings for the different types of blocks.
Note that sprinklers are never further than 4 meters from the boundary of the field.

Page 4:
Shows the detailed drawings of the critical parts of the system.