The plumbing courses cover all the aspects that you will be required to deal with as a garbage disposal. You will be taught about the basic aspects as well as about health and safety issues and sanitation.
The repair of a ballcock tube is the simplest repair of all toilet leaks. There is a small black tube that is in the tank of the toilet that connects to the flush valve fill tube. If the tube slips from the little clasp that holds it in place, it can begin spraying water line repair in the tank and out from under the tank cover. To fix this toilet leak, simple re-attach the black tube to the clip. It really is that simple.
After you have the stems out you should be able to find the washer on the "inside" end. If it is nicked, torn or brittle it is likely the cause of your drip. Even if it looks brand new, go ahead and replace it. You've already come this far. You can get replacement washers at almost any hardware store. Sometimes you may want to replace the whole stem, especially if the handle end is stripped out. It's best to just take the stem with you to the store and see if you can match it up. Most Do It Yourself stores have replacement stems for many popular brands. If your valve has a center diverter valve to switch the waterfrom the tub spout to the shower head the same process applies. Many times it is easier to replace the diverter stem than to repair it. This really depends on the design of the stem.
Dishwasher. To check water leakage on your dishwasher, you will need several sheets of paper placed underneath the machine before operating it. When the machine stops, check the sheets of paper you placed underneath to see it they are wet. If so, call a maintenance person to repair the leak immediately. It is important also for you to remember that regular dishwasher uses 15 gallons on every wash load. Make sure that when you use it, the load is full.
A broken water supply line can cause water to spurt from the line connecting the toilet to the main water valve. The first step to repair this leak is to shut off the water line repair supply valve. This will stop the flow of water to the toilet. Next, flush the toilet to remove the water from the bowl and hold down the handle until it is completely empty.
People who own rental properties are great ones to give you information. With all of the service people needed for maintenance on their units, they typically know who to call and what level of work they perform. Most property owners will be more than happy to give you the information you seek. In fact, they were probably in your shoes at one time.
Sometimes there can be complications of broken toilet flanges, closet bolts or rotted sub-flooring. If you find any of that in your situation, it will need to be repaired before reinstalling the toilet.