Step 2 · Shut Off Water and Drain the Bowl
Locate the water supply shutoff valve, typically found on the wall behind the toilet near the floor. Turn the valve handle clockwise until it stops to cut off the water supply. Remove the toilet tank lid and flush the toilet, holding the handle down to drain as much water as possible from the tank and bowl. Some water will remain in the S-trap at the bottom of the bowl. To remove this, either use a cup to bail it out into a bucket or forcefully plunge a toilet plunger up and down to push the water down the drain. The goal is a nearly empty, dry bowl.