My friend washed my bong with some 420 cleaner and now there is some nasty ass residue all along the chamber. Does anyone have any ideas on how to remove it? I've tried salt and 91% alcohol.
I would just try the really hot water + vigourous shaking to get it out. Usually that works for me. I use a different brand down now with less residue called 'dr. green's lightning flash chalice cleaner" or something along those lines.