Remove the remaining water from the bowl by forcing it down with a plunger and mopping up the remaining water with a sponge. Then, remove the remaining water in the tank with the sponge as well.
[header] How to replace a toilet [title] Get rid of all the water. [step] Turn off the water at the supply valve. Flush the toilet to remove most of the water (holding down the flusher for as long as possible).