Today on Weekly Boiler Tips Jude dives into various types of level controls—how they work and their applications. 0:34 Trough style valve 2:12 Bi Level Probe 3:55 McDonnell Miller 150 5:26 McDonnell Miller 150 Manual Reset 6:30 McDonnell Miller 193/194 8:05 McDonnell Miller No. 5M Manual Reset Switch 9:00 McDonnell Miller No. 6 Switch 9:44 Level Controls for Lower Pressure Boilers 10:40 Getting the Correct Float Head for a McDonnell Miller Level Control The first in the series is the trough valve. Safety notice: Always consult experts for complex repairs. 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.