The advantage of installing an underground storage tank for attenuation purposes is that it maximises land utilisation. Unlike ponds or swales, which take up valuable surface area, an underground tank allows for the use of space above it for essential amenities such as car parks, roadways, green spaces, and even parks. This is especially beneficial in densely populated areas where land is limited but development is necessary.
By placing the tank underground, the space is not lost or wasted. It remains available for various purposes while fulfilling the attenuation function. Underground tanks can be designed to be either light duty or heavy duty, depending on the specific requirements and location.
The alternative of using ponds or swales often results in empty spaces that serve their purpose only during storm events. They can appear as grassy holes or reed-filled areas, providing little value or wildlife habitat most of the time.
In many cases, people may not even realise that attenuation tanks are present beneath their back gardens or even in park spaces. These tanks can be seamlessly integrated into various locations, including roundabouts, without compromising valuable surface space.
The key advantage of underground storage tanks is the efficient use of available land, ensuring that no space is wasted and that development can proceed without sacrificing essential amenities.
