I clean my bongs A LOT. They get a lot of use, atleast twice daily, so they can get pretty disgusting. A big problem I have is a lot of resin, or basically brown shit, builds up on my stem and on the inside of the bong and it tastes like shit after a while. I'll usually smoke out of it 5 times before it starts to get gross, and I spend 5-10 minutes scrubbing everything down with hot water & Goo Gone. :thumbsup:

My pipes don't get as disgusting suprisingly, i'll clean them maybe once a month.

By the way, don't smoke resin! I'd only half consider smoking it out of a bong, and only if I had a lot of it.

Chris