I asked my oil company if they could measure to see how much heating oil I have left in my underground 550 gallon tank. And they said they couldnt measure it because it was right next to the house and the pipes bend around and cant be checked. I believe the home inspector who inspected my house before I got it said the same thing.
How could this be possible? What about if someone tried using a retractable measuring stick..maybe that would work? I find it so stupid that the original owner of the house would want an underground oil tank like this that cant be measured. Or maybe it was just an installation error?