Our concrete holding tanks offer a robust and reliable solution for temporary wastewater storage or rainwater collection. Constructed from reinforced concrete, these tanks are designed to handle large volumes of liquid without compromising on strength or performance. Whether for commercial, industrial, or residential use, our holding tanks provide a durable alternative to plastic, ensuring long-lasting and maintenance-free operation.
Every concrete tank is cast here in Bundaberg and delivered throughout Queensland, to your site or to your depot.
Holding Tank vs Septic Tank
The two get confused often. A holding tank is a sealed tank that simply stores wastewater until it is pumped out, with no treatment and no discharge to ground. A septic tank separates and partially treats wastewater, then discharges the effluent to a disposal area on the property.
Holding tanks suit sites where a disposal area is not practical, where the water table is high, or where the load is temporary or seasonal. If you need treatment and on-site disposal rather than pump-out, see our concrete septic tanks.
Key Features:
- Reinforced Concrete Construction: Built from durable reinforced concrete, offering superior strength and resistance to environmental wear.
- Large Capacity Storage: Designed to hold significant volumes of wastewater, rainwater, or other liquids, ideal for temporary storage solutions.
- Superior to Plastic Tanks: Unlike plastic tanks, our holding tanks do not crack or split over time, and when used for water storage, they do not leech chemicals into the water, ensuring safer and cleaner storage.
- Leak-Proof Design: Engineered to prevent leaks, providing secure and reliable liquid containment.
- Custom Sizes Available: Available in standard sizes with customizable options to suit specific project needs.
- Low Maintenance: Requires minimal upkeep, offering a hassle-free storage solution for many years.
- Easy Installation: Precast design ensures a quicker, more efficient installation process.
- Meets Australian Standards: Manufactured to the relevant Australian Standards for precast concrete products.
Applications:
- Temporary wastewater storage
- Rainwater collection
- Commercial and industrial water storage
- Remote or off-grid properties
- Agricultural water storage
Frequently Asked Questions
What is the difference between a holding tank and a septic tank?
A holding tank is sealed and stores wastewater until it is pumped out, with no treatment and no discharge to ground. A septic tank separates and partially treats wastewater and then discharges the effluent to a disposal area on the property. Holding tanks suit sites where an on-site disposal area is not practical.
What sizes of concrete holding tank are available?
Bundaberg Concrete Casters casts concrete holding tanks in standard sizes and to custom dimensions. Call the office on (07) 4151 5969 with the volume you need and how the tank will be used, or send your drawing, and we will confirm what we can supply and the lead time.
Can a concrete holding tank be used for rainwater?
Yes. Concrete does not leech chemicals into stored water the way some plastics can, so concrete tanks are well suited to rainwater collection as well as wastewater. Tell us the intended use when you order so the tank is finished appropriately.
Are concrete tanks better than poly tanks?
Concrete tanks do not split or crack the way poly tanks can over time, and their weight means they resist floating out of the ground where the water table is high. Concrete also does not leech chemicals into stored water, which matters for rainwater collection.
Do you deliver concrete tanks outside Bundaberg?
Yes. Bundaberg Concrete Casters delivers throughout Queensland, either to your site or to your depot. The company also supplies the Queensland Department of Transport and Main Roads and Ergon Energy.
Why Choose Bundaberg Concrete Casters?
At Bundaberg Concrete Casters, we specialize in delivering high-quality precast concrete products designed for durability and performance. We proudly supply the Department of Transport and Main Roads and Ergon Energy and deliver across Queensland. Our Holding Tanks offer a superior alternative to plastic tanks, ensuring long-term reliability, no risk of splitting, and chemical-free water storage.





