ATU Repair in Orlando, FL

A standard septic system uses anaerobic (oxygen-free) bacteria to break down waste in a tank before effluent moves to a drainfield. An aerobic treatment unit adds an air pump to inject oxygen into the treatment process, which promotes faster and more thorough breakdown of waste. ATUs treat effluent to a higher standard and are often required on smaller lots, near waterways, or where soil conditions don’t support a conventional drainfield. Because they have more moving parts — pumps, timers, chlorinators, spray heads — they also require regular professional maintenance to stay compliant and functioning properly.

An active alarm always deserves prompt attention — it means your system has detected a problem, whether that’s high liquid levels, a pump failure, or a component fault. In most cases, a short-term alarm won’t cause immediate harm if you reduce water usage right away (don’t run laundry, limit showers, avoid running the dishwasher). However, you should call a licensed technician as soon as possible — within the same day if at all possible. Ignoring an alarm can lead to system backup, environmental violations, or damage to other components. Lapin is available 24/7 for active alarms and emergencies.

Florida state rules require that most ATU systems be inspected and maintained at least once per year under a service contract with a licensed septic contractor. Some counties have stricter requirements. During a routine service visit, we check the air pump, chlorine levels, floats, spray heads, control panel, and tank compartments — and handle any issues before they become serious problems. Staying current on your annual service also keeps you compliant with your operating permit.

The air pump (aerator) is the most commonly replaced component in an ATU. Pumps wear out over time from continuous operation — most have a lifespan of 3 to 7 years depending on the brand and usage. Failure can also be accelerated by power surges, moisture intrusion, clogged air filters, or a system that’s been running harder than it should due to heavy water usage. When the pump fails, aeration stops, treatment quality drops, and the alarm typically activates. Replacement is usually straightforward, and Lapin carries common pump models to handle repairs quickly.

Some basic tasks — like adding chlorine tablets to the feeder — can be done by a homeowner. However, most ATU repairs require a licensed septic contractor. In Florida, performing unpermitted work on a septic system is a violation and can result in fines, permit issues when you sell the property, or voided warranties. More importantly, ATUs involve electricity, wastewater, and components that need to be tested and calibrated properly to ensure safe and compliant operation. For anything beyond adding chlorine, call a professional.

ATU repair costs in Central Florida vary depending on what needs to be fixed. A simple part replacement — like a float switch or chlorinator component — is considerably less expensive than replacing an air pump or control panel. Lapin provides upfront estimates before any work begins, so you always know what you’re agreeing to. We believe in honest, transparent pricing — no hidden fees, no pressure. Call (407) 326-3367 for a no-obligation assessment of your system.

Yes. We offer annual ATU maintenance service agreements that satisfy Florida’s required inspection and service intervals. Under a maintenance contract, we schedule your annual visit, perform all required inspections and adjustments, document the service, and flag any issues before they escalate. It’s the easiest way to stay compliant and keep your system healthy year after year. Contact us to learn about service contract options for your property.

Non-functioning spray heads are usually caused by one of a few things: clogged spray nozzles (common from mineral buildup or debris), a failed spray pump, low pressure due to a pump issue, or a timer or control panel problem that’s preventing the pump from activating. It’s important to address this quickly — if effluent isn’t being distributed properly, it can back up in the tank or discharge in concentrated areas that damage your lawn or create a health hazard. Our technicians can pinpoint the cause and restore proper distribution during a single service visit.