Step 1 · Prepare Workspace and Shut Off Water
Begin by preparing your workspace. Lay an old towel on the floor around the base of the toilet to catch any water drips. Locate the water supply shut-off valve, typically on the wall behind the toilet (an oval or football-shaped handle). Turn the valve clockwise until it stops to shut off the water supply. Next, flush the toilet and hold the flush handle down to drain as much water as possible from the tank. You can use a small bucket to catch any water from the supply line in later steps.
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