Station 1 Leaks Through All Other Stations: Valve Adjustment or Diaphragm

One Valve Weeps Continuously While Others Run

4-valve (8-station) system. Station 1 runs, but when station 2 starts, station 1 keeps leaking through all 7 remaining stations. Valves inspected: 3 weep slightly, 1 whispers (sucks air).

Primary Fix: Flow Control Adjustment

Most common cause: flow control open too far. Adjust EACH valve:

1. Open flow control fully.
2. Close fully, counting turns.
3. Reopen halfway.

If Adjustment Fails: Diaphragm Service

Disassemble weeping valves. Clean diaphragm and ports. Replace diaphragm if damaged. The "whispering" valve may have a torn diaphragm or missing parts.

Adjust all valves first—it's fast and often solves it.