To conduct a test on the air inlet of a PVB, where should the high hose be connected?

In the context of testing the air inlet of a Pressure Vacuum Breaker (PVB), the high hose must be connected to the appropriate test cock that allows for proper measurement of the air inlet pressure. Test Cock #2 is specifically designed for this purpose, as it is strategically placed to facilitate access to the air inlet.

When testing a PVB, the objective is to ensure that the vacuum breaker is functioning correctly, allowing air to enter the system when there is a negative pressure, thereby preventing back siphonage. Connecting the high hose to Test Cock #2 will ensure that the test accurately reflects the air inlet's performance under various conditions.

The other test cocks, although important for other aspects of testing the device, are not suited for testing the air inlet specifically. Each test cock serves a distinct purpose in assessing the various operational parameters of the PVB, with Test Cock #2 being the designated point for air inlet testing.