This is a great website for learning information about septic tanks, which many people are not informed of.  Things like your septic system is your responsibilties, How it works, why should you maintain your septic system, how do you maintain your septic system, and what can make your system fail.  Just click on the site below, it has many ways to help you and help protect the environment.  there are also a lot of great pictures of how it works, and where it goes after the septic tank. 

One cool thing that I saw that I did not know was for people who own Hot tubs or swimming pools they are great ways to relax. Unfortunately, your septic system was not designed to handle large quantities of water from your hot tub. Emptying hot tub water into your septic system stirs the solids in the tank and pushes them out into the drainfield, causing it to clog and fail. Draining your hot tub into a septic system or over the drainfield can overload the system. Instead, drain cooled hot tub water onto turf or landscaped areas well away from the septic tank and drainfield, and in accordance with local regulations