Agricultural and Biosystems Engineering
If your on-site wastewater treatment system develops problems or fails, don't be so anxious to find a solution that you'll try any product that comes along. Many people with septic systems are confused by magazine and TV advertisements, as well as telephone solicitations, for onsite system additives. On-site system additives are not needed and are not recommended by the South Dakota Cooperative Extension Service.
Derickson, Russell, "Septic System Additives - Not Needed" (2002). SDSU Extension Extra Archives. 29.