Maintaining your Aerated Wastewater Treatment System (AWTS) is crucial to ensuring its long-term efficiency, avoiding costly repairs, and keeping your environment safe and healthy. AWTS are advanced systems designed to treat wastewater from residential and commercial properties. They use aeration to break down organic matter, making the wastewater cleaner before being released into the environment. Like any system, AWTS require regular maintenance to perform at their best year-round.
This blog will guide homeowners through a seasonal checklist for maintaining their AWTS, explain how weather can impact system performance, and provide tips on avoiding common problems such as blockages, odors, and pump failures. It will also highlight when to call a professional for servicing and how often this should be done.
Importance of Seasonal Maintenance for AWTS
Aerated Wastewater Treatment Systems (AWTS) are sophisticated, self-contained units designed to treat sewage and wastewater. Unlike conventional septic systems, AWTS rely on aeration to facilitate bacterial activity that breaks down organic matter. This ensures that the water is filtered and treated before being safely released back into the environment.
However, AWTS need consistent care throughout the year to function optimally. Performing regular checks can prevent minor issues from turning into major problems, extending the lifespan of the system and reducing the risk of costly repairs.
By sticking to a seasonal maintenance checklist, homeowners can ensure their AWTS is running smoothly regardless of seasonal changes, keeping wastewater treatment as efficient as possible and avoiding environmental hazards.
Seasonal Checklist for AWTS Maintenance
Spring and Summer
Spring and summer bring warmer temperatures, increased rainfall, and greater water use in homes, especially with outdoor activities like gardening or filling pools. Here’s how to maintain your AWTS in these seasons:
Check the Aeration Unit: In warmer months, the aeration system works harder to treat wastewater. Ensure the aerator motor is functioning properly, as any malfunction could reduce treatment efficiency.
Inspect Air Stones and Diffusers: The air stones or diffusers in the tank help aerate the water. Over time, these can get clogged or wear out. Make sure they are clean and in good condition.
Check for Heavy Rain Impact: Excessive rain can overwhelm an AWTS if it has inadequate drainage or a system that isn’t designed to handle excess water. Inspect the drainage fields for signs of pooling or flooding. Proper water flow should be maintained to avoid system backlogs or wastewater backup.
Clean the Filters: During the warmer months, filters can become clogged more quickly with organic debris and algae growth. Clean or replace filters regularly to maintain airflow and prevent blockages.
Pump Maintenance: Check if your pumps are functioning optimally. Summer months tend to have increased water use, which puts more strain on the pumps. Ensure there is no debris or sludge buildup around the pump intake, and test its functionality.
Autumn
Autumn is a transitional period, with cooler temperatures and reduced rainfall. As trees shed their leaves, debris can block vents and diffusers, so it’s important to be proactive with maintenance.
Clear Debris: Fallen leaves and debris can clog the aerator and ventilation system. Inspect the tank and surrounding areas for blockages, and clear away any leaves or debris.
Check Sludge Levels: With reduced water usage and colder weather, sludge accumulation can slow down treatment efficiency. Monitor sludge levels and pump out excess sludge if necessary to keep the system functioning properly.
Test System Performance: As temperatures begin to drop, the system may experience changes in how it performs. Test your AWTS to ensure that it’s treating wastewater efficiently, even with the cooler air and lower water temperatures.
Winter
In winter, AWTS are susceptible to freezing temperatures, which can significantly reduce the system’s ability to process wastewater. Cold weather can cause pipes to freeze, impacting aeration, filtration, and effluent disposal.
Inspect for Freezing: Cold weather can cause the aerator or pipes to freeze, potentially leading to system failure. Insulate pipes and keep the aeration unit protected from extreme cold to avoid freezing. If your system is located in an exposed area, consider adding extra insulation around the unit.
Monitor Aerator Function: During winter, your AWTS needs to operate continuously to prevent freezing. Make sure the aerator is functioning properly, as an idle or malfunctioning aerator could lead to system breakdowns.
Test Effluent Disposal: Ensure that your effluent disposal system is working properly, even in freezing temperatures. Check that there is no standing water or freezing in the disposal field.
How Weather Impacts AWTS Performance
Weather plays a significant role in the efficiency of your AWTS. Temperature fluctuations, heavy rainfall, and even prolonged periods of drought can affect how well your system works. Here’s how weather can impact your system:
Cold Weather: During winter, colder temperatures can cause freezing of pipes, aerators, and sludge in the treatment tanks, significantly slowing down or halting the system’s operation. Insulation and regular checks are key to preventing these issues.
Heavy Rain: Heavy rainfall can flood your system, leading to overflow and potentially causing the system to break down. This can overwhelm the treatment process, causing untreated wastewater to be released into the environment. Installing proper drainage and keeping up with regular maintenance can help manage the risks associated with excessive rain.
Heat and Humidity: In summer, warmer temperatures and humidity can encourage the growth of bacteria and algae in the system, affecting its treatment efficiency. Make sure your aerators and diffusers are working well to maintain the system’s performance.
Common Problems and How to Avoid Them
Regular maintenance can help you avoid the most common AWTS problems:
Blockages: Clogs can develop in various parts of the system, including pipes, filters, and aerators. To avoid this, regularly check for signs of buildup and clean components as needed. Avoid flushing inappropriate items like oils, fats, or non-biodegradable materials into the system.
Odors: Bad odors are often the result of a malfunctioning aerator or blocked air vents. Ensure that aerators and diffusers are free of debris and that there’s adequate airflow throughout the system.
Pump Failures: Pumps can fail if there’s debris buildup or improper maintenance. Regularly clean the intake and check for any blockages. Testing the pumps during seasonal checks can prevent unexpected failures.
When to Call in Professional Servicing
While regular maintenance is crucial, there are times when you should call in a professional. Here’s when to seek expert help:
Annual Servicing: Even with routine checks, your AWTS should receive professional servicing at least once a year. This includes a full inspection, system testing, sludge removal, and ensuring that all components are in good working order.
Strange Odors or Algae Blooms: If you notice foul odors or algae blooms in or around the treatment area, it’s time to call a professional. These could be signs that the system isn’t functioning as it should.
Frequent Malfunctions: If your system is frequently malfunctioning or requiring repairs, professional servicing may help identify underlying problems and prevent further damage.
System Overload: If you’ve noticed an increase in water use or suspect your system is overwhelmed (e.g., during heavy rain), have it inspected by a professional to ensure it can handle the demand.
Seasonal maintenance is essential for keeping your AWTS operating efficiently, especially as weather conditions change throughout the year. By following a regular checklist, you can reduce the risk of system failures, prevent costly repairs, and ensure your system works optimally, no matter the season.
For homeowners, proactive maintenance is the key to keeping their AWTS running smoothly. However, when in doubt, don’t hesitate to call in a professional to ensure that your system continues to function as it should. Regular maintenance and early detection of potential issues will not only extend the lifespan of your system but also help protect the environment and reduce water usage.
