Looking at the sink or toilet thinking can this dyer sheet or grease go down that...if you are thinking it, the answer is usually NO. Remember the pipe leading into your septic system is only 3 inches wide. The only things that should be flushed into your septic are items that are dissolvable. Your septic system is an expensive, finely tuned machine with moving parts that operates in water and sludge to dissolve waste from your home, Treat it with respect and it will last for years.
Keeping your septic system flowing and running is best not only for the longevity of your septic system as well as your family, but the environment as well. By avoiding putting items into your system that can harm your system you will save both time and money.