What is an Attenuation Tank?

10 - 03 - 2022

There are some things that can destroy all your hard work when working in commercial or domestic construction, and one of the most destructive can be flooding. We all know the challenges raised by flooding, and it can be tempting to think that as long as we are in a ‘safe’ area, it is unlikely to happen.

However, heavy rain can cause issues in every area and, in order to combat this, you need an attenuation tank. But what is an attenuation tank and how do they work? Read on to find out.

What is an Attenuation Tank?

An attenuation tank, also known as a stormwater tank, is an easy and financially savvy way to control water flow. This bespoke tank can suit a variety of settings, and is useful for both rainwater during heavy storm weather and surface water.

How does an Attenuation Tank work?

With an attenuation tank, rainwater is stored inside the tank and can be steadily released through a chamber which controls the flow. You have the option to pump the water through a chamber or allow it to run off gradually via a system of pipes. This slows surface water so the run-off does not enter a river, reservoir or sewer too quickly, thus it does not become overwhelmed and cause flooding in the area.

Is this different from a Soakaway?

Soakaway crates are utilised for a similar purpose, but they are used to remove problematic water differently. A soakaway crate absorbs water and distributes it steadily back into the ground and soil. However, an attenuation tank will hold the water and allow it to be channelled to a different place. These two options work in tandem to create a reduced likelihood of flooding due to storms.

Why is it necessary to use an Attenuation Tanks?

Due to recent flooding and attempts to reduce this, especially in high flood risk areas, there is much pressure to create systems that can reduce water flow at the source of the water itself, rather than focusing on it when it enters a larger body of water. While there are many theories for how to implement anti-flooding measures, an attenuation tank is an easy way for everyone to do their part to reduce instances of localised flooding.

Other options for redistributing rainwater are available, such as the aforementioned soakaway crates and elevators, and these can be used alone, without tanks. However, an attenuation tank allows water to be caught from a broader area, collected in a single place, and distributed evenly. It is easier to install than some other options, with quick and effective results.

The benefits of Attenuation Tank Design

The design of attenuation tanks makes them a unique option – the bespoke flow control system means that you are able to release water steadily, without overwhelming delicate infrastructure. This can be especially important if you are in an area with an older or more delicate drainage system that has not been properly updated. Flooding can also happen more often in areas that are under construction, where the earth has been disturbed and standing water can become an issue quickly.

The tank can hold rainwater until it is safe to return it to the local water system, reducing issues occurring further downstream, as well as in the direct area.

Attenuation Tank Maintenance

So, once you have had your attenuation tank properly installed by a professional, how long will it last and do you need to perform routine maintenance? As far as maintenance is concerned, attenuation tanks can last for over sixty years with minimal to no maintenance required. This is especially impressive when you consider the amount of water these tanks can take in, and the stress they can alleviate. This is what makes them such a popular choice for developers working on large projects and water companies seeking to reduce flood risks.

As you can see, an attenuation tank can be a fantastic solution for those looking to keep their property safe from flooding. Do you want to know more about how an attenuation tank might be able to protect your commercial or residential setting? To find out more about the right stormwater options for you, and to learn about attenuation tank installation, get in touch with JTD Building Supplies to discuss your requirements and see how we can help you.

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