The March 2019 issue of PM Engineer dives into the latest plumbing trends in commercial kitchens and baths, including the role grinder pumps play combatting sanitary wipes, and the expanded use of food waste disposers in grocery store prep areas. Also in the magazine, Julius Ballanco sees problems with a new International Plumbing Code change requiring more shutoff valves. John Siegenthaler, P.E., finishes his two-part column on different configurations for thermal storage tanks, and fire protection engineer Jacqueline Wilmot provides a guide for navigating the new and reorganized 2019 edition of NFPA 13.