Step 1 · Shut Off Water Supply
Before beginning any work, you must shut off the water to the faucet. Look beneath the sink for two small valves, known as shutoff valves or stops, connected to the wall. One supplies hot water and the other cold. Turn the handles of both valves fully clockwise until they stop. Once closed, turn both faucet handles to the 'on' position on the sink. A small amount of water will drain out, and the flow should stop completely. This depressurizes the lines and confirms the water is successfully shut off.
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