How deep do I dig at the head location (U Fitting)?
For the LawnBelt you are cutting a 2″-4″ deep into the sod using a flat spade. The spade is rocked back and forth to create a V-shaped opening in the earth. Then the Belt is pressed down into slit just under your sod line. At each sprinkler head location you dig a deeper and wider V-shaped opening 9-10″ down.