Dirty bongs have a special kind of funk, and I know some of you haven’t cleaned yours in years. You might have changed the water a couple of times, but the residue stays unless you scrub it off. You can buy pipe cleaners and other tools to scrub it, but you could break the slide shaft, and this technique is much easier.
Fill your bong about a quarter full with rubbing alcohol, and then add enough salt so that crystals of it remain. Now swirl the bong for 3 to 5 minutes and watch the resin dissolve. Rinse, and you are ready to go.
Remember, you should change your water every day when you use Pipe Potions, because the ingredients can grow bacteria.