Help with Radon please.
a DIY 3 day kit gave results of 12.7. i unknowingly tested during the heaviest rain (lasted like a month) that we'd ever had, just a few weeks ago. read that the rain could really raise the results. wondering if i should buy more tests and test upstairs too, or maybe hire a pro. looks like their testing goes for $100-150 and are more accurate.
i'm guessing our main problems are the totally open sump pit (no cover).it's an old 1950s metal and concrete pit, and i'm guessing i'd need to buy a hammer drill just to secure an airtight lid. also there are 2 open pipes leading in/out of the basement. i think they were used by the old sump pump and lead straight into the ground outside.
at 12.7 would the rain really elevate it that much? and even if it did is it a very good chance that normal level would still be over the 4.0?
should i just stop wasting money on tests and get a pro to test? i worry about their motivation if they sell & install the mitigation systems too lol.
should i try and install an airtight sump lid and cap those 2 pipes, or just quit messing around and hire a pro installed mitigation system? as i stated, looks like it's be a job just to fit an airtight sump lid, as it would need to be secured to either concrete or heavy metal.
advice appreciated! thanks