Today on Boiler University's Weekly Boiler Tips, watch as Jude explains how conductivity of the boiler's water can affect the level in the sight glass. Weekly Boiler Tips are compiled by the knowledgeable and remarkably prolific content creators at WARE, a family owned, third-generation, 69-year-old commercial and industrial boiler rental and service firm based in Louisville KY. You can learn all about this and more at WARE's Boiler University.