If the time delay fails to discharge, which valve should be opened as a bypass?

If the time delay fails to discharge, which valve should be opened as a bypass?

• A. Main bypass valve
• B. System bypass valve
• C. Time delay bypass valve
• D. Open time delay bypass valve

Answer: (D)

When a time delay in the discharge line isn’t working, you bypass it by opening the valve that provides a direct path around the time delay device. This time delay bypass valve creates an alternate route so water can flow to the discharge point immediately, without waiting for the delay mechanism to actuate. It’s the correct action because it targets only the delayed section, keeping the rest of the system intact while restoring flow. Opening a main bypass would bypass more of the system than needed, and a system bypass would bypass the entire system, which isn’t appropriate for resolving a failed time delay.

When a time delay in the discharge line isn’t working, you bypass it by opening the valve that provides a direct path around the time delay device. This time delay bypass valve creates an alternate route so water can flow to the discharge point immediately, without waiting for the delay mechanism to actuate. It’s the correct action because it targets only the delayed section, keeping the rest of the system intact while restoring flow. Opening a main bypass would bypass more of the system than needed, and a system bypass would bypass the entire system, which isn’t appropriate for resolving a failed time delay.