Rain Bird DV100 Valve Seeping: Swap Solenoids to Isolate Fault

If zone 5 seeps after diaphragm rebuild, the solenoid may be trapping debris. Before replacing the valve body, do a solenoid swap test.

Test Procedure

1. Unscrew solenoid from zone 5 valve.
2. Unscrew solenoid from a working zone (e.g., zone 1).
3. Swap them.
4. Run both zones.

Interpretation

• Seep moves to zone 1 → solenoid is faulty → replace solenoid.
• Seep stays on zone 5 → valve body has hairline crack or seat damage → replace entire valve.

Why This Works

Rain Bird solenoids have tight tolerances; debris in the plunger port prevents full closure. Swapping isolates the component.

Resource

See irrigationtutorials.com for valve replacement guide.