To replace a sprinkler head, what is the next step after the main valve is closed?

To replace a sprinkler head, what is the next step after the main valve is closed?

• A. Inspect the head
• B. Vent the line
• C. Open drain valve
• D. Close the bleed valve

Answer: (C)

After isolating the sprinkler zone by closing the main valve, the next essential step is to relieve the water and depressurize the line. Opening the drain valve at the lowest point lets the water flow out, emptying the line so you can safely remove and replace the sprinkler head without a spray of pressurized water. Venting the line addresses air pockets and isn’t the immediate action needed to prepare for head replacement. Inspecting the head or leaving the bleed valve closed won’t create a safe, dry work area. Draining through the drain valve provides the necessary depressurization for a safe replacement.

After isolating the sprinkler zone by closing the main valve, the next essential step is to relieve the water and depressurize the line. Opening the drain valve at the lowest point lets the water flow out, emptying the line so you can safely remove and replace the sprinkler head without a spray of pressurized water. Venting the line addresses air pockets and isn’t the immediate action needed to prepare for head replacement. Inspecting the head or leaving the bleed valve closed won’t create a safe, dry work area. Draining through the drain valve provides the necessary depressurization for a safe replacement.