Ontario, Calif. — The International Association of Plumbing and Mechanical Officials (IAPMO) has made available a Water Demand Calculator (WDC) that estimates peak water demand in residential buildings. The WDC will appear in the appendices of both the 2018 Uniform Plumbing Code® (UPC) and the 2017 Water Efficiency and Sanitation Standard (WE•Stand). The 2018 UPC Read more