Careful — a critical tool on your service truck may not be doing its job. How long has it been since you checked the performance of your vacuum pump? Many vacuum pumps in the field are not working ...

The sputtered drone of a vacuum pump filled the former milking barn that now houses Kennebec Valley Community College’s heat pump lab. Instructor Dave Whittemore, who held the yellow vacuum in one ...

You're building the truck of your dreams, complete with an updated chassis and killer paintwork. You admit you went a little too far when building the engine, but the horsepower in your eyes kept you ...

This story was originally published by The Maine Monitor, a nonprofit and nonpartisan news organization. Visit the newsroom online: themainemonitor.org. The sputtered drone of a vacuum pump filled the ...