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Aerobic Treatment Unit Service in Colorado
An aerobic treatment unit uses air and bacteria to treat wastewater to a higher standard than a conventional tank. Colorado counties commonly require one on small lots, tight soils, and sensitive sites, and they require maintenance to match.
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- Pumping and component service for ATU systems
- Aerator, diffuser, and control checks
- Documentation for county maintenance requirements
Aerobic treatment unit An aerobic treatment unit, or ATU, is a septic system that adds air to the wastewater so oxygen-using bacteria break down waste more thoroughly than a standard tank. It uses a blower or aerator and needs regular servicing.
ATUs are permitted on tight lots and difficult soils, and they only meet that permit if the mechanical parts are maintained.
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- 20+ Years of Septic Experience
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The situation
What an ATU is and what it needs
An aerobic treatment unit pushes air into a treatment chamber so aerobic bacteria break down waste faster and more completely than they can in an anaerobic septic tank. The effluent it produces is clean enough that counties will permit a smaller or shallower dispersal area on difficult sites.
The trade off is maintenance. An ATU has an air compressor, diffusers, and often a pump and controls. If the aerator stops, treatment quality drops within days and the dispersal area starts taking loading it was never designed for. Most Colorado counties require a maintenance contract and periodic reporting for exactly this reason.
How the job runs
How we service an ATU
Check the aerator and airflow
The compressor is the heart of the system. We verify it is running, moving air, and not drawing hot.
Inspect chambers and settling
We look at sludge levels in each compartment and whether the unit is producing clear effluent.
Test controls and alarms
Panels, timers, and alarms are checked so a failure gets announced instead of hidden.
Pump on schedule and record it
ATUs still need pumping. We record what we did so you have proof for the county.
Why us
Why owners use us for ATU service
- We work on aerobic systems, not just conventional tanks
- Service records written for county reporting
- Straight talk when a unit needs parts instead of another visit
- Serving mountain and Front Range properties with permitted ATUs
What it costs
What drives ATU service cost
Unit manufacturer and configuration, whether the visit is routine maintenance or a component failure, aerator and diffuser parts, pumping volume, and how many compartments need service.
Questions
Aerobic treatment unit questions
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Family owned and operated, serving Denver and the Colorado Front Range for over 20 years.