After rain, roof and hard standing water is usually collected into the underground drainage system and disposed off site into the main surface water sewer, watercourse or soakaway. But if all of the developments in the surrounding areas are disposing of their water at the same time, this overloads the system.
Rainwater harvesting can help in obtaining planning permission on sensitive development sites where planning authorities may be looking for innovative elements to be incorporated in the building. Some developments are receiving planning permission with restrictions on the rate of surface water disposal from site, which can also be helped by the installation of a good management system.
Inten can provide the complete solution for rainwater management problems:
Rainwater harvesting in a commercial situation
In a commercial application, up to 85% of the total water requirements can be serviced by rainwater harvesting including office buildings, factories, schools and hotels. All have a high demand for toilet and urinal flushing and other uses such as wash down areas and industrial processing.
A large, well known, dairy company has recently had a rainwater harvesting system installed on a new plant. The rainwater from the main building was directed to several large underground storage tanks and re-used back in the building for wash down purposes.The savings against the cost of using mains water has resulted in a payback period of less than 1 year, against the cost of installation.
Rainwater harvesting in a domestic situation
In a domestic situation, up to 55% of the total water requirements can be serviced by rainwater including toilet flushing, washing machines, not forgetting that rainwater is naturally a “soft” water and can therefore substantially reduce the amount of detergents required. External uses such as car washing and garden watering can also be catered for.
A typical 4 bedroom detached house built with a direct rainwater harvesting system feeding the 3 WC’s, washing machine and external tap for car washing and garden irrigation will have a payback period of less than 3 years. After that, ongoing savings will be made.
Get in touch!
To find out how Inten can help with your rainwater harvesting on your premises, call us now on 0800 169 2857 or request a quick online quotation by completing the form below.