A rainwater harvesting system costs between £2,000 – £5,000 depending on the solution you choose. Underground tanks may cost more than header tanks due to the installation process. A budget-friendly solution would be a water butt. However, this wouldn’t store enough rainwater for commercial use.
Whilst the initial cost may be off-putting, it’s worth thinking about the future savings. If your business uses non-potable water, a rainwater harvesting system will save you money in the long run.