Vent Box Leak Test

PROCEDURE
1. Install Rotunda Vent Box - Pressure Test Adapter 134-00122 or equivalent.
2. Pressurize vent box to 5.0 kPa (20 inches H2O) using Rotunda Evaporative Emission Tester 134-00056.
3. Monitor pressure for 2 minutes. Pressure should not decay in excess of 1.5 kPa (6 inches H2O).
4. If pressure decays in excess of 1.5 kPa (6 inches H2O). Apply soapy water solution around vent box gasket and seals to pinpoint leak. Replace or service seal as necessary.