This conversation is starting to scare me. Don't ever, and I can't stress this enough, ever put any additives into your Septic Tank. Especially chlorine unless you have a specific system designed for it. The bacteria in human waste is all that you ever need in a septic tank. If you need to add Rid-X or something like that to get your septic system to work properly than you are doing something wrong. Aerobic treatment units normally will produce a discharge that is clear but NOT decontaminated. They will still have E-Colli in the discharge which is then sent to some shallow (12") trenches much like a traditional septic field. The aerobic treatment unit is primarily used to treat the effluent so that the ground receiving the disharge can more easily handle it. This means they are used in places that have clay, or clay loam as a soil which will receive the disharge. Sorry about rambling on but "If you don't eat it or drink it then don't put it into you Septic System!!"
