Ensure your toilet is free of any leaks. Try putting drops of food coloring in the tank. If you then see colored water in the toilet bowl shortly after, it is leaking. If sewage is overflowing your toilet, this is due to a blockage in the branch line connecting the main line and sewage line. If you cannot take care of this blockage, you will need to hire a professional to run a snake in the line to clean it. You will be able to check their license and negative reviews. More information about Inexpensive Plumbing Cumby Tx.
If sewage backs up into a toilet in your home, this can be from a blockage. If you have tried and cannot remove the blockage, a professional will have to come out and run a snake through the line in order to clear it. You should verify that their license is up to date and if there are any negative complaints against them. If a plumber does not have a current license and even a limited number of complaints, you won't want to hire them to do work for you. When you install a water heater, make sure you reconnect the pipe that is extending from your drainage. It's probably a pipe for recirculation, and that can help your water remain heated without wasting water.