On Dec. 7, Plumbing Manufacturers International and the Alliance for Water Efficiency announced a joint partnership on a study to determine potential water savings that could be achieved by replacing older, inefficient toilets with high-efficiency models.

The “Saturation Study of Non-Efficient Water Closets in Key States” will focus on Arizona, California, Colorado, Georgia and Texas – all states which have experienced recent serious water shortages. The study will determine the number of non-efficient toilets that remain within the installed residential base of plumbing fixtures. It also will determine potential water savings that could be achieved with the replacement of those non-efficient models.