How Long Does the Average Aerator Last in a Home Sewage Treatment System and What Causes Failure?

Home Sewage Treatment Systems play a crucial role in managing household waste when a property is not connected to a public sewer system. At the heart of many aerobic systems is the aerator, a device that injects oxygen into the tank to promote the growth of aerobic bacteria. These bacteria break down waste more efficiently than their anaerobic counterparts. Knowing how long an aerator typically lasts and what factors contribute to its failure is key for homeowners who rely on these systems. Below, we will cover the lifespan of aerators, signs of wear, and the main causes of failure.

What is an Aerator?

According to the EPA, “Aerobic Treatment Units (ATUs) use many of the same processes as a municipal sewage plant, but on a smaller scale. An aerobic system injects oxygen into the treatment tank.”  There are multiple benefits of an aeration system, one of which is that it can be used in homes with smaller lot sizes as well as cleaner effluent leaving the system.

Typical Lifespan of Aerators

The average aerator in a well-maintained aerobic system typically lasts 3 to 5 years. However, with proper care and under optimal conditions, some aerators can last even longer, sometimes up to 7 years or more. The actual lifespan depends on a variety of factors, including brand, model, usage intensity, and maintenance practices.

Key Points on the Lifespan of Your Aerator:

• Quality of the Unit: Higher-end models made by reputable manufacturers tend to last longer than budget options.
• Usage: An aerator that runs continuously will typically last longer than an aerator that runs intermittently, due to less start ups required of that motor. Also, a motor that runs continuously is less prone to internal moisture accumulation.
• Maintenance: Regular cleaning and inspections can extend the lifespan of the aerator significantly.

Common Causes of Failure

Understanding what makes an aerator fail can help prevent early breakdowns. Often homeowners are not familiar with the best practices that can prevent a costly repair or replacement of an aerator.

Mechanical Wear and Tear

The aerator consists of multiple moving parts like fans or impellers that work tirelessly to push air into the tank. Over time, these components wear out from continuous motion, causing the aerator to weaken or stop functioning.

Contributing Factors:

• High Operational Load: Aerators are under constant use, and as debris builds up on the aerator shaft this will cause a greater resistance and load on the motor.
• Poor Quality Parts: Units with substandard components will naturally degrade faster. It is important to purchase a quality aerator.

Clogging and Debris Buildup

Debris can build up in the system and obstruct the moving parts, such as the aspirator tip or air pathways. This blockage impedes the aerator’s ability to pump air efficiently, leading to eventual failure. In addition, what you put into your tank can affect the longevity of the aerator. For instance, if you are putting hair or lint into your drains, you may be causing your aerator considerable stress. Hygiene products also tend to build up in the system. Even the type of toilet paper you use, or “flushable” wipes can be a contributing factor to clogs and debris. You will get the most longevity from your aerator when you maintain your system properly.

Prevention Tips:

• Install filters on drains inside the home that prevent debris from reaching the aerator.
• Clean the filters regularly
• Regularly inspect the system to ensure there is no debris buildup.

Electrical Issues and Longevity

Aerators are typically powered by electricity, making them vulnerable to electrical problems. Issues such as power surges, wiring failures, or motor burnout can cause the aerator to stop working.

Common Electrical Problems:

• Short Circuits: Moisture can cause electrical shorts that damage the aerator.
• Motor Burnout: Excessive heat generated from overuse or inadequate cooling can burn out the motor.

Environmental Factors

The environment in which the aerator operates can significantly impact its durability. Exposure to extreme weather, such as freezing temperatures, excessive heat, or humidity, can degrade components over time.

Impact of Your Environment

• Corrosion: Humid conditions can lead to rust and corrosion of metallic parts.
• Temperature Extremes: Cold weather can stiffen or crack components, while extreme heat can warp plastic parts.
• Flooding: If your Aeration system is often inundated with water in the rainy months, it may stress your system.

Signs Your Aerator May Be Failing

Early detection of issues can save time and money. Homeowners should be vigilant and look for the following signs:

• Increased Noise Levels: Grinding or loud humming noises can indicate that the motor is struggling.
• Reduced Airflow: A decline in the usual bubbling or oxygen flow in the tank suggests the aerator is not working efficiently.
• Frequent Power Tripping: If the aerator causes the circuit breaker to trip repeatedly, there may be an electrical issue or debris tangled on the shaft.
• Odor: A failing unit can lead to an imbalance in bacterial breakdown, causing a foul smell to emanate from the system.

How Can Supeck Septic Services Help You Extend the Life of Your Aeration System?

While the average unit in an aeration system can last between 3 to 5 years, its lifespan depends on quality, usage, and maintenance. Regular system inspections, along with prompt cleaning, and timely replacement of worn components can help prevent the most common causes of aerator failure. By understanding these factors and taking initiative-taking measures, homeowners can extend the life of their systems aerators and avoid costly repairs or replacements. If you are concerned about your aerator, contact us today to schedule a service call.