To keep your rainwater harvesting system running efficiently, regular underground tank cleaning is essential.
Over time, silt and organic matter can accumulate at the bottom of the tank, particularly if your property is surrounded by trees or exposed to environmental debris. Even with pre-tank filters in place, finer particles can still pass through, leading to sediment build-up.
If left unchecked, this build-up can:
- Compromise water quality, leading to unpleasant odours and discoloration
- Cause damage to key system components, such as filters and pumps
- Reduce overall system efficiency and lifespan
At The Rainwater Guy, we recommend a professional tank clean every five to ten years to maintain a healthy system. This service is included in some of our maintenance plans for added convenience and value.
We also strongly recommend a tank clean after installation and before system commissioning. Debris often enters the tank during construction, and if not removed, it can cause damage before your system is even in use.
What to Expect from Our Tank Cleaning Service
- Conducted safely by two qualified engineers
- Thorough removal of sediment, sludge, and debris
- Visual inspection and health check of your system
- Advice on maintenance and any areas of concern
Our team ensures your tank is cleaned to the highest standard, supporting long-term performance and trouble-free operation.
Book Your Tank Clean Today
Whether your system is new, due for a clean, or showing signs of poor water quality, we’re here to help.
Contact us to schedule a tank clean or learn more about including it in a maintenance plan.





