Commercial Project for Briggs & Forrester
The Doncaster campus of the National College For High Speed Rail is part of the HS2 programme and was opened in October 2017. We were approached by our client to provide a rainwater harvesting solution to comply with the specification drawn up by designers Buro Happold. Working closely with the contractor, a suitable design was developed to fulfil the consultants’ requirements in order to achieve a BREEAM Excellent rating.
Rainwater is collected from the building’s roof through a high efficiency Vortex filter. This is a self-contained unit independent of the underground tank, offering safe, easy access for filter maintenance. The filtered water is then diverted to the storage tank until required.
From here the water is pumped to a break tank in the ground floor plant room. The tank is equipped with an automatic back-up from the mains water supply for times of low rainfall.
Water from the break tank is then pumped on demand by the variable speed booster set via a UV disinfection unit.
Rainharvesting Systems were also subcontracted to carry out the internal installation work.
The system is predicted to save in the region of 330,000 litres of water per annum.