Quick Summary: Start by installing the sprinkler riser on the lateral pipe outlet. Then the sprinkler is screwed onto the riser. Adjust the sprinkler to be in the desired location and perpendicular to the ground surface. Position sprinklers at the edges of the irrigated area about 4″ away from hard surfaces like sidewalks and driveways. If growing a new lawn from seed make provisions to prevent the water spray from the sprinkler from washing the seed away. Details follow!