The plumbing courses cover all the aspects that you will be required to deal with as a loud toilet. You will be taught about the basic aspects as well as about health and safety issues and sanitation.
There are two, one on each side of the toilet, closet bolts which hold the toilet to the floor. If there are caps over the bolts, remove or pop them open. Using a small crescent wrench unscrew the nuts from the bolts. Alternate side to side when unscrewing this will be much more important when reinstalling the water line repair bolts but alternate anyhow.
One other common design that is considered "washerless" was made famous by Delta and copied by several other makers. It uses little "cup" seals that fit over springs recessed in the back of the valve body. The springs press these "seals" against the cartridge and regulate the flow through little tapered openings in the cartridge. If you have one of these and it's dripping, changing these springs and seals will usually correct it. Here's a tip. Once you have the cartridge out of the way, insert a phillips screwdriver into the seal and pop both the seal and spring out. Stick the new ones on the end of the screwdriver to help guide them into place. This is especially helpful if you don't have long slender fingers.
These harsh working conditions would be hard for anyone. Plumbers need to make sure that they take all of the precautions they can take to remain uninjured, healthy and safe.
If you do not have hot water in your home, it may be a bit tricky for you to attempt to find out what the cause is yourself. If you have a tank that is leaking, this may be the reason why you do not have any hot water. If you have an electrical unit, the causes may be things such as a bad heating element, fuses that are blown, an overload switch which is bad, circuit breakers not working properly or faulty thermostats. If you have a gas tank, the problems causing you to not have hot water line repair may include a problem with the thermocouple burners. In situations like these, it is imperative that you contact a reputable plumbing company to get everything squared away.
If you plan to replace fixtures, you may be able to do this on your own. Buy the same style or functional fit and then turn off the water to make the switch. Follow the directions provided by the manufacturer to get the job done.
Then, you can take your new shower parts home and reinstall them in the inner assembly. It is very important that everything be aligned properly and tightened to prevent leaks. Beware of over tightening, however, since this can also cause problems. Once you are sure everything is installed properly, replace the cover plate and turn the water back on to test your repair work. With a little bit of work, your do-it-yourself shower repair project can be a success. It does not take an expert, just a little effort and know how.