Step 3 · Disconnect Faucet Supply Line
Using an adjustable wrench or channel-lock pliers, grip the compression nut that connects the flexible faucet supply line to the outlet of the angle stop. Turn the nut counter-clockwise to loosen it. A small amount of water will drain out into the bucket. Once loose, you should be able to unscrew it the rest of the way by hand. Gently move the supply line out of the way.