Basement & Radon Solutions installed a radon fan to his already existing passive system. We added a HP220 Radon Fan R3 to make the system active. The fan will be able to get the radon, that was in the basement, and remove it through the pipes and out of the home safey. Then, we added a Manometer to the radon pipe for easy viewing. The Manometer is a vacuum gauge that shows Mark if the radon fan is still operational. By installing the fan to the passive system to make it active, we were able to get the radon gas level down to 1.2 pCi/L! It was a pleasure helping Mark make his home happy, safe, and healthy for the next family!Mark also left us a 5 Star Review!