Rain Bird ESP-8Si: Low Pressure on Zone 2 Only

Single Zone Low Pressure: Valve or Line Issue

Zone 2 (8 heads) has low pressure—heads don't pop up, just bubble. Other zones fine. Zone 2 is farthest from controller.

Check List

1. Valve flow control: Open ½ to ¾ turn.
2. Leak in lateral line: Look for wet/green spots along zone 2 run.
3. Obstruction in pipe: Hard to find; may require camera or test cuts.

Distance Not the Cause

Controller distance doesn't affect hydraulic pressure. Wire length only affects voltage (minimal at 24 VAC).

Process of Elimination

If flow control open and no visible leak, suspect crushed pipe, root intrusion, or debris at a fitting. Start digging at the valve box and work outward.