What visual signal indicates the drip system has reached 20 psi and water flow when using a status indicator?

• A. A rising indicator to show that the system has reached 20 psi and water flow
• B. An alarm sound
• C. A red LED indicator
• D. A rising gauge at 10 psi

Answer: (A)

When a status indicator is used on a drip system, the moment that shows 20 psi and confirms water is flowing is a rising visual indicator that climbs as pressure builds toward the target. This direct, proportional signal lets you see the system reaching the needed pressure and starting to flow without ambiguity. An audible alarm isn’t a visual cue and wouldn’t pin down a specific pressure. A red LED usually signals a fault or warning rather than confirming normal operation at a precise pressure. A rising gauge at 10 psi would mean only half the target pressure, so it wouldn’t indicate that 20 psi and flow have been achieved.