The plumbing courses cover all the aspects that you will be required to deal with as a water quality. You will be taught about the basic aspects as well as about health and safety issues and sanitation.
With a putty knife, carefully scrape the remaining parts of the wax ring from the area. Clean the spot so that the new wax ring will be level. Place a new wax ring on the opening and replace the toilet. Bolt it back onto the floor, reconnect the water line repair supply tube and watch for leaks as the water is turned back on.
This so impressed me, that I thought, here is the man who might fix my sink problem, and I told him about my kitchen sink. The look on his face was priceless, as he said, "Ridiculous! Sinks don't leak if they're new." He even showed me what to do. He took out a big heavy-duty screwdriver with a big flat-head blade and showed me. "This is what's probably lose." He put the blade of the screwdriver in a notch the size of a giant screw head that was right in the center of the drain basket where the plug sat in.
Working on the gas lines is also a complex job that only a licensed plumber can handle because it is very dangerous. Small leaks can't always be detected by odor alone, but a licensed professional has the proper equipment that's needed to ensure that you don't have any leaks in the line.
The water line repair most likely damaged your electrical outlets and lighting fixtures. Have a qualified electrician come in to evaluate and repair the electrical.
Plumbers, contractors, landscapers, and related professionals are often indexed by numerous online websites eager for you to visit their "directory". Each field will have their own group of websites competing for your attention. In the end these "Plumbers Directories" are often incomplete, and frequently provide little more information than the phone book.
The next huge thing is to prevent and kill mold that has already started growing. Mold is the most dangerous thing when an area floods. Mold can turn deadly within a extended period of time. Use mold killing agents like Killz and other products on the the market. Be extremely thorough with this process. If the water flooded above the dry wall line, you MUST remove the dry wall to make sure you can replace insulation and dry wall which mold naturally is attracted to. Painting a Killz primer on the concrete is a great idea before installing new carpet and drywall. This will ensure that you have prevented future mold growth and will also ensure the safety of your family.