RadonAwayGP501 Radon Fan & Install kit: Two 3"x3" White Couplings & U-Tube Vacuum Gauge & Radon System Labels

Huge difference in radon levelsWorking great

Same unit as old fit

I have had the 0-4 Manometer originally installed before, and simply do not like them. Why would you have a Manometer which is set at zero, then the differential goes between below zero on one side of the U-tube to above zero on the other side. So, I had to fill the Manometer to about 1 or 2 major divisions above zero on the scale in order to get a about 1 displacement reading that I could see. It makes more sense to have a Manometer that has divisions below and above zero so that you can get a sense of what is normal displacement of about 1. After installation, an experienced installer told me that all of the systems that he put in would read right around 1 when the system is running, and that he normally saw readings somewhere between .75 to 1.25 on the minor divisions (or 1/2 major down to 1/2 major up) which equals 1. On a 0-4 Manometer, there are no divisions below zero.

awful noise. You can hear it throughout the house, down the street, 24/7. Gets radon out, but at the cost of noise pollution.

This fan is so loud I had to turn it off. Could hear it running across the street. What a mess. Noise level is off the charts.