When it comes to managing stormwater, one of the most important systems is the On-Site Detention (OSD) tank. These tanks help reduce the risk of flooding and prevent strain on drainage systems.
There are two main types, above-ground and underground OSD tanks. So, which one is the better choice? Let’s explore by looking at the pros, cons, and key differences between the two.
Before we dive into the comparison, it’s important to understand what is an OSD tank. An On-Site Detention tank is a stormwater management structure that temporarily stores rainwater during heavy rainfall. It slows down the release of runoff into the council drainage network.
Above-ground OSD tanks are installed on the surface of the ground and are visible in areas such as backyards, parking lots, or open spaces. These tanks are made from materials like concrete or plastic.
Underground OSD tanks, as the name implies, are buried below the ground’s surface. They can be placed beneath driveways or gardens.
Above-ground OSD tanks need a lot of space, which can be a problem in areas where land is limited. These tanks require a large, open area to fit and function properly.
On the other hand, underground OSD tanks are great for properties where space is limited. Since they are buried, they don’t take up any visible area.
Above-ground OSD tanks are quicker and more affordable to install since they don’t require heavy excavation. Additionally, these tanks are easily accessible for maintenance, inspections, or repairs.
Meanwhile, underground OSD tanks involve a more complex and expensive installation process. They require excavation and construction work.
Once installed, they are hidden from view and less susceptible to damage. Though maintenance can be more challenging, as accessing the tank is not as straightforward.
Above-ground OSD tanks can impact the overall appearance of your property. While some people do not mind their presence, others find them unsightly and disruptive to the property’s aesthetic.
If maintaining a clean, clutter-free look is important to you, an underground tank is a better option.
Whether you opt for an above-ground or an underground OSD tank, the ultimate goal is to ensure you have a reliable, compliant, and durable system that meets council regulations and performs well during major storm events.
At Buildaroo, we specialise in designing and installing OSD systems to meet your needs and comply with all local requirements. If you’re ready to get started or have questions about your options, don’t hesitate to reach out.
Call us today at 0421 841 919 or fill out our online form to get a consultation and take the next step towards effective stormwater management.
