What are the alternative types of septic systems?
The conventional septic system is the most widely used and least expensive. Alternative types of septic systems include low-pressure pipe systems, fill systems and aerobic treatment units. These cost a great deal more to install than a conventional system, and the low-pressure system needs to be inspected every 6 months. The aerobic treatment unit must be inspected 4 times a year. Other possible options for on-site wastewater disposal include cluster systems, sand filters, mound systems, and spray irrigation systems.