Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a radon system in my recently purchased home which looks like this:

radon system

However, I have no idea how to interpret what it is telling me. Can anyone provide clear and easy to follow instructions?

share|improve this question
up vote 2 down vote accepted

This is actually just a vacuum measurement system - used to show that there is negative pressure in the radon mitigation system drawing radon gas up and out of your home.

As long as the liquid in the right hand arm is higher than the left, then it is working.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.