What is a pressure regulating stem?
A. A pressure regulating stem is installed in a spray head to keep the head operating at 30 psi instead of the 65 psi or greater that the main water line is able to supply. Spray heads are manufactured to operate at 30 psi and any greater water pressure is lost in fine mist and does not reach the turf. Installing pressure regulating stems can more than double the water/money savings by using less than 50% of the water the main is able to supply.
