Suction / Discussions

I have a house to sell, I already have contract. we stayed 13 years in that home with full finished basement. In Radon test result is 7.5pCi/L . What should  we do and how much it will cost? Can you please suggest us what should be done. House is in very good condition.  Radon mitigation equipment such as passive radon...

Good morning, I'm looking to install radon mitigation (sub-slab suction). I understand it's not too difficult, but there are a few details I'm not sure about. 1. How can I indentify what will be the best spot to drill/install the pipe into the basement floor? 2. Is there a way to know where the drain pipes goes under t...