Radon Manometer Reading Quill

If you own a home with a radon mitigation system, you have probably glanced at the small gauge on the vent pipe and wondered what it really tells you. That gauge is a manometer, and the number it shows - the radon manometer reading - is the single most important indicator of whether your system is working correctly. I have spent years inspecting and repairing these systems in St. Louis, and I can tell you that a surprising number of homeowners and even some contractors do no