You can edit the distance covered by a sprinkler’s spray.
To edit a sprinkler’s spray properties:
Select the sprinkler.
Right-click and select Properties, or select Edit > Modify Elements > Properties.
Edit the size values on the Basic property page. For most sprinklers you would edit the Width and Depth values. The Adjustable sprinkler in the catalog lets you specify a custom radius and included angle for the spray.
Click OK.