There are a lot of things that can arise when dealing with plumbing. Some mishaps are easily correctable, but others can be a little more challenging. No matter what the problem is with your plumbing, you should be educated so when there is an emergency, so that the problem can be fixed in a timely manner.
Pump your septic tank at least every five years to keep it in proper working condition. Although it is somewhat of an expense to pump out a septic tank, cleaning up sewage backup in your home will ultimately cost much more.