This palette contains a set of symbols that can be used when laying out irrigation designs for small domestic sites in the metric environment where the base unit is mm. The palette includes symbols to indicate position of the water source, master valve assembly, solenoid valves, typical controllers and a range of rotator and spray heads.
Each symbol has been drawn on its own layer L-IRRIG with the base point in the center of the symbol to allow for easy insertion.
In addition, each irrigation line has been placed on its own layer. For example, 25mm PVC piping has been placed on a separate layer L-IRRIG-PVC-25MM. This allows the isolation of that layer and subsequent extraction of the length of piping required.
Here is a link to a set of symbols more suited to large scale open space irrigation projects.