OOOOCH, It's gona take alot of detergent and simple green to clean out that 5 gallons oil. Do they sell it in a 5 gallon pail.
It sounds like it is not to bad, but I can't believe it came loose that much. Seems like something didn't get tightened down or else it needs some serious locktight.
Well at least you will back on the water before too long, and that,s where we all want to be. Wrong time of the year here!