Disconnect Old Supply Line from Wall

What happens here

The first step in replacing the supply line is to locate the water supply valve for the dishwasher, typically found under the kitchen sink. Turn the valve clockwise to shut off the water supply completely. Place a small towel directly beneath the connection to catch any residual water that may leak out when the line is disconnected. Using the adjustable jaw wrench, carefully loosen the nut connecting the dishwasher supply line to the valve. Once loose, fully unscrew it by hand and allow any remaining water to drain into the towel.

Goal: Safely disconnect the old dishwasher supply line from the water source under the sink.