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Alcovy Septic provides aerobic septic system service in Georgia — Lawrenceville, Gwinnett County, Rockdale and western Walton. If your system has a control panel, an audible alarm, a chlorinator tube or a second and third tank in the yard, it is not a plain gravity system and does not get serviced like one. It also, contrary to what many owners are told when they buy the house, still needs pumping.
Why these systems exist here
The Piedmont’s Cecil and Pacolet soils are red kaolinitic clay over saprolite. The USDA series description puts permeability in that clay subsoil low enough that a conventional trench field cannot disperse a household’s daily flow on many lots. When percolation comes back too slow, the county will not permit a standard field and the design moves to an engineered alternative: an ATU, a mound, low-pressure pipe or drip dispersal. Septic & Well’s Georgia soils guide notes that gravity systems fail where percolation exceeds 60 minutes per inch, common across metro Atlanta clay.
So an ATU on a Gwinnett lot is usually not a luxury upgrade — it is what the site allowed, and the fallback of “just put in a normal field” is frequently not available.
The parts that need attention
The aerator. A compressor pushes air through diffusers in the treatment chamber, feeding aerobic bacteria that break down waste far faster than the anaerobic process in a sealed tank. Aerators run nearly continuously and wear out. A silent aerator turns an ATU into an ordinary septic tank with worse hydraulics, and effluent quality drops within days.
The chlorinator. Systems permitted with disinfection hold chlorine tablets in a tube in the effluent path, and owners run them dry constantly. Use only tablets rated for wastewater — pool chlorine is a different chemistry.
The pump chamber. Treated effluent collects here and a pump moves it to the dispersal area on a float or timer. The float tree fouls, the check valve sticks, the pump fails — the most common cause of an alarm.
The high-water alarm. It exists because the failure is invisible indoors — everything drains normally right up until it does not.
Why an alarm means call today
A high-water alarm means effluent is standing above the level the pump was supposed to move it past, and nothing about that resolves on its own. A tripped breaker, a stuck float, a burned-out pump, a dispersal field that will not take more water — every one keeps accumulating water while you wait for a convenient appointment.
Waiting turns a pump swap into a backup inside the house, or into poorly treated effluent surfacing at the dispersal area, which is a permit problem as well as a health one. If the alarm is on, call: the emergency line is answered 24/7. If the ground is also saturated, read septic problems after heavy rain first — a field that cannot accept water is a different problem from a dead pump.
Yes, it still needs pumping
Aeration reduces solids; it does not make them vanish. Sludge builds in the trash chamber and the clarifier, and once it carries into the pump chamber, solids go out to the drip lines, spray heads or trenches. Blinded soil is what turns a maintenance bill into a drain field repair or a full replacement.
The EPA recommends pumping every three to five years and inspecting more often; a unit with mechanical components deserves the tighter end of that. See how often to pump a septic tank in Georgia.
Permits and soil reports
Since 7 February 2022, GNR Public Health has required a Level 3 soil report for all septic permits across Gwinnett, Newton and Rockdale — new installations, repairs, and additions requiring modification to the existing system. A component swap is service, not permit work. If the design changes, budget the soil scientist and permit before anyone breaks ground; the Gwinnett septic repair permit guide has the sequence.
What it costs, and why maintenance wins
Pumping a multi-chamber unit typically runs $300 to $700 by chamber count and volume, itemized filter service $100 to $400, and a condition inspection $150 to $450 (HomeGuide, 2026).
Now the replacement side. Septic & Well puts ATUs and mound systems for Piedmont clay sites at roughly $10,000 to $20,000 installed; HomeGuide puts engineered systems broadly at $20,000 to $40,000 and up. Against those numbers, an aerator, a float or a pump — and the pumping schedule that keeps solids out of the dispersal field — is the cheapest insurance available. The drain field replacement cost guide has the Georgia figures.
We service engineered systems in Dacula and Loganville, where large lots and slow-draining soils put many of these units in the ground. To get one on the schedule, contact us.
What's included
- All chambers located and opened
- Trash, aeration and clarifier chambers pumped as needed
- Aerator operation confirmed and air line checked
- Diffusers and filters inspected
- Chlorinator tube checked and tablet level reported
- Effluent pump and float tree function tested
- High-water alarm tested at the panel
- Dated receipt with gallons, chambers serviced and findings