APPLICATION: For use in sprinkler heads where low head drainage is a problem. Unthread the body cap and remove the internal assembly from the sprinkler body. Turn the internal assembly upside down to access the opening at the bottom of the riser. Insert …

Residential Rotors - Rotor Nozzle Installation Procedure …

 If your spray bodies are leaking water after the system (valve) is shut off, and the flow of water reduces over time, your heads are experiencing low head drainage. Low head drainage is where the lowest heads on the line weep the water in the pipe after …