Replacing a toilet can be a difficult and daunting task, but it is important to know what you are doing before you begin. The most important thing to do is to make sure that the new toilet will fit in the space that you have. You will also need to make sure that the new toilet has the same connection types as the old one. If everything is not connected properly, it could lead to serious problems. It is also important to remember to turn off the water before you begin any work.