The failure mode is ordinary. The phone rings during the month the utility notices go out, when every 2-inch assembly is due the same week, nobody answers, and the annual test lapses and the water utility writes the property up.
Union answers and writes assembly size, type, and whether this is the annual test or a repair before talking about a clock time. The Assembly test minutes turns those counts into minutes on site so the company sees a size, not a vague "can you come look."
Then one company is offered the note. A certified tester runs the gauge and files the report. Union does not rebuild the valve. If the window cannot be met, the caller hears the next real opening, not a promise that keeps the board pretty.
The note is the product. A callback that skips assembly size, type, and whether this is the annual test or a repair creates the second angry call.
