Rain Bird Sprinkler Timer Isa 304 Manual May 2026

Turn the dial to Custom Schedule – Starts . You can set up to three start times per day in 15-minute increments.

If your system fails to run as expected, check these common issues: rain bird sprinkler timer isa 304 manual

Instantly suspends watering during wet weather while retaining all saved program data. Turn the dial to Custom Schedule – Starts