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Aerobic System Service
Compare septic companies that show aerobic system service among their service details.
An aerobic treatment unit (ATU) injects oxygen into the tank to speed up bacterial breakdown, and is used where soil conditions, lot size or a high water table rule out a conventional gravity system. ATUs have moving parts, an aerator and sometimes a disinfection stage, and most manufacturers and many states require a maintenance contract with periodic professional visits, not just an occasional pump-out.
Not every company that pumps conventional septic tanks also services ATUs; it's a narrower specialty tied to specific equipment brands. If you have an ATU, confirm the company services your specific brand before booking.
See our guide to septic system types for how an ATU differs from a conventional system, and our maintenance schedule guide for how often ATU service is generally recommended.