Low head drainage is caused by changes in elevation.Gravity forces water in the lateral line to drain out of the lowest head of the zone. Install the Rain Bird 5000 rotor with the Seal-A-Matic check valve and put an end to unnecessary water waste.
The Rain Bird Seal-A-Matic check valve
holds back up to seven feet of elevation pressure, sealing water in the lateral
line and preventing standing water caused by low head drainage. All of the performance and reliability
you expect from the leader in irrigation with the water-saving benefit of the
Seal-A-Matic check valve.