The horror stories Iíve heard about indoor tanks are about indoor tanks that have been removed, but the piping left in place. The oil company comes, hooks up to the fill and begins dumping fuel into the basement. You canít get that smell out ever.
That would truly suck ill admit... I dont even know how you would go about cleaning that up.
make sure your downspouts are taking your roof water away from house, and your ground slopes away from house in all directions. may have to run a dehumidifier in basement, full time. do you see water in basement? during/after rain?
I figured it would need a dehumidifier. It get way to high % down there.
I do see water in there after rain, but in a different way then before. When i first got here it was coming in to the half im trying to finish up. Likely though the old window and bad gutters. But both have been replaced last summer/fall and i have not seen any water since.
However, on the other side, behind the room and behind that oil tank near the far corner is the well tank. Whoever installed it ran a pipe through the wall out to the well pump and put the electrical cord in there. But they did not seal the pipe at either end. (or its worn away. Im not digging it up to check) So when it rains, the ground water does seek in through that pipe. But that can be taken care of. And much better then a foundation leak.
If it matters, next to the water tank, in the corner itself is the sump pump. Always some water in there as it only drains it down so far. It need replaced one day, but most things are out of my budget right now.