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.
When you get to the house stand if front of the toilet and locate the water shut off valve. Should be down below the toilet on the wall. Just turn it off (righty-tighty) completely and flush the toilet. All the water should have left the tank, well at least most of it. If there is remaining water line repair get it out with paper towels or a rag. The important thing is that no more water came in. If it did then your valve is not shut all the way or not working and you need additional help.
The con to time well spent is only if the fix or installation works. Suddenly, when a pipe is squirting water or the dishwasher is leaking all over the floor, that time seems wasted instead of well spent. Now your time is wasted, plus you have to pay for a professional plumber to come over and fix the mess. That time could have been spent doing something else, like golfing or swimming or gardening.
The next step in this process is to determine what type of method is available for fixing the problem. You cannot just caulk a crack or fill it in with cement and hope for the best. Unfortunately, there is more work than this because you have to fix the problem from both the inside out and the outside in. This takes a professional in most cases to determine the best method for repair.
These are people who would naturally refer to each other because they typically refer to each other. What about a "Home" referral team? people that support the "home" industry. More people are electing to keep their home and are willing to do the maintaining or fixing up. Electrician, plumber, window, roofer, siding, flooring, and so on. Think about these people getting together once a week to talk about projects that they are working on and creating a water line repair core of competent reliable partners that refer to each other. Inevitably, a person needs carpentry work after the electrician leaves.
The key to finding local businesses when doing an online search is to include your zip code in the query, such as, "plumber 72764". This will tell Google or bing that you want results from that geographic location!
Is your garbage disposal clogged, but it is turning ok? This may be due to a blockage in the pipe. If you look at the pipe work under your sink you will see that the disposal is connected to a pipe that should join to a U bend and providing it was installed correctly it should have a connector that can be undone. If you undo this connector the pipe will pull away and generally this is where most blockages occur. Remove the blockage and reconnect the pipe.