Rule 15-18-77-2.1.5 - Products1. Treatment a. Advanced Treatment Units b. Septic Tanks c. Holding Tanks d. Non-water borne Systems e. Alternative wastewater technology 2. Disposal a. Aggregate Replacement b. Subsurface Drip c. Spray Irrigation d. Alternative wastewater technology 3. Disinfection 4. Effluent Filter