And the winner is….. Grunge Off!!!!! Spread the word‼️‼️ Grunge Off is the all time best bong cleaner as long as you have a few hrs for it to sit. It has no Salt or added abrasive. You just shake it around the bong to coat all of the sides, let it sit. I normally do overnight. Them shake it around a little bit after it’s sat for several hours, and It is the most effective bong cleaner I’ve ever used. When you’re done cleaning your bong do not dump the cleaner out in the sink!!!! It’s reusable!!! Just get a cheesecloth and strain the chunks out if you’re a flower smoker, if you’re a dab smoker you won’t have chunks, and after you strain it it’s ready for your next clean.