An irrigation system is assembled by first excavating trenches and positioning PVC fittings, then placing cut pipes into the trenches and cementing T-connections and fittings to pipes, finishing by cementing end fittings and lining up sprinklers in the trenches.

1. Assemble an irrigation system - the first steps
Mark and excavate your trenches to the required depth.
Place your PVC fittings in position next to the trenches.
Place your pipes into the trenches as shown and cut all of your
pipes to the required lengths.
Start gluing/cementing your fittings to your pipes. Make sure
you start with the pipes and fittings that make up the T

2. connections first.
Glue/cement the fittings at the end of the pipes last. Make
sure that the sprinklers are lined up in the trenches (as shown
in the image).