Rubbing alcohol and salt, or a good bong cleaner (ROOR recommended).
Fill it up with the liquid, leave it for some time (10 mins, 1 hour? ), shake it every so often.
If your using something good, it will clean up no problem.
WeedyBoyWonder Reviewed by WeedyBoyWonder on . How hard would this be to clean? Would this be a good buy or would it be so hard to clean that I wouldn't wanna use it? It seems like the stems would get clogged after a while. Bushmaster 'Mad Professor' Double Bubbler - Online Shop Rating: 5