When it comes to necessity, the bathroom is one of the most used rooms in the entire house, so it's important to keep everything running smoothly and in good working condition. Taking care of your home and staying up to date with maintenance can go a long way in preventing costly repairs. This includes keeping an eye out for the warning signs of a faulty toilet. Letting things go may result in further issues, such as flooding and water damage. If you experience the following, it may be time to replace your commode.