Rainwater Harvesting is the collection, storage and filtration of reclaimed rainwater which can be reused to supply a range of applications, such as toilets, irrigation systems, vehicle washing plants and other commercial uses.

Many people think that collecting rainwater is still only achievable on a small scale through a traditional water butt. Whilst water butts are a great way of harvesting rainwater on a domestic scale, commercial solutions by Stormsaver include many more safety features and technology to maximise water savings. We are going to be using this blog to explain the reasons why all large development projects should have rainwater harvesting installed as standard.

Here are four reasons to install a Rainwater Harvesting System... 


Meet upcoming rules and regulations

We know regulations can be confusing… That is why we have simplified them! The UK Government are proposing to implement a raft of new legislation for buildings and businesses to help reduce the nation’s water consumption. Here are the most important changes you need to know about…

  • Changes to Schedule Three of the Flood Act 2010 – Sustainable Urban Drainage Systems (known as SUDs) like rainwater harvesting systems will be made mandatory on commercial developments. Expected implementation 2024.
  • New Environment Improvement Plan – under new plans businesses will be required to reduce water consumption by 15% by 2050.
  • Water Neutrality – although no solid plans have been put forward yet, certain areas are looking at ‘net zero water zones’ (also known as water neutrality). Essentially, water neutrality requires a new development to not demand any excess mains water than the previous use of the site. There are three steps to achieving water neutrality which you can read more about here.


Save water

Water is a precious recourse throughout the world. There is a common misconception that water is plentiful in the UK, but this is not the case! Soaring populations and longer, drier summers mean that when rainfall occurs, we need to capture and reuse as much as possible! In fact, England alone will require an 4,000 megalitres of water per day by 2050.

Rainwater Harvesting means we no longer need to waste drinking water for flushing toilets, washing cars and watering plants. By reducing mains water consumption, we can use potable water for where we need it most like drinking, sanitation, and bathing.


Carbon efficiency

Rainwater Harvesting reduces carbon emissions! Many people do not know that saving water with rainwater harvesting can dramatically reduce carbon emissions. Dealing with storm water runoff locally (where it lands) means that runoff does not need to be pumped to large treatment plants which are many miles away. Read more about carbon and rainwater harvesting here.


Reduce localised flood risk

Rainwater harvesting alleviates pressure on our existing water infrastructure meaning there is less chance of the system being overwhelmed in the event of a storm.


Want to learn more?

It just makes sense, doesn’t it? Rainwater Harvesting is simple, effective, and efficient. Why not take advantage of our FREE CPD sessions to learn more about rainwater harvesting and water conservation? Learn more here.

Written by Matt
Water Reuse Specialist

My role as a Water Reuse Specialist means I get to keep up to date with all things water conservation. My favourite water saving tip is to turn taps off when brushing your teeth! I think rainwater harvesting and the water reuse industry is exciting, and I love sharing updates with our customers. View Matt’s Stormsaver profile here.

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Constructionline Gold Member CHAS Accredited UK Rainwater Harvesting Association Member Safecontractor Approved Waterwise Affiliate UK Business Awards Winner 2022