I can't believe the degreaser hasn't killed anything you will ever put in that tank!! Take you a wash rag and get it real wet, pour A LOT of baking soda on the rag and wash it... You don't want it so wet it rinses all the baking soda off but you want it real wet!!! You don't have to soak it, you don't have to wait, you don't need a razor blade, just wash it and it comes right off!!!
