http://www.combinedharvesters.co.uk/productcart/pc/viewContent.asp?idpage=47 Combined Rainwater Harvesting and Storm Water Management Tailored Solutions http://www.combinedharvesters.co.uk/productcart/pc/viewContent.asp?idpage=47 A basic outline for the Code for sustainable homes, our single national standard, and how we can help you reach your six star potential to drive continuous improvement, greater innovation and exemplary achievement in sustainable home building. http://www.combinedharvesters.co.uk/productcart/pc/viewContent.asp?idpage=47#bs The rapid expansion in companies who supply rainwater harvesting of varying quality has resulted in the publication by British standards BSI-code of practice BS8515:2009. This guide has been produced to assist architects, construction companies and contractors to comply with the new standard in the same way that all systems from combined harvesters do.