The plumbing courses cover all the aspects that you will be required to deal with as a fast. You will be taught about the basic aspects as well as about health and safety issues and sanitation.
It water line repair is advisable to speak to neighbors and friends regarding the same. If any of your neighbors or friends has had a plumbing emergency and has been happy with the plumber they engaged then it is best to contact the same plumber. Family may also be of some help as far as recommendation is concerned but neighbors are a better option because they will give you details of an agency in the same area as you.
Offers 24-hour service. They are called emergency plumbers for a reason. If your pipe broke in the middle of the night, you can't just turn off your water source until the next morning when a plumber is available. Search the internet for plumbing that offers 24-hour services in your area, or look them up at the directory listing. Surely one or two companies exist in your community.
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.
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.
And the way to know what's sufficient? Well, until the work is done an the bill paid you won't know for certain, but this is the best that can be suggested and normally works very well.
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.