probably the nasty stuff thats in there is causing it, i would clean definitely replace the water, thats just disguisting in my opinion
i clean my bong everynight just a heavy sesh. chill the fuck out everyone lmao i change my water every 20 hits. a sesh for me is 30. do the math.... thats the dirtiest ive ever had it. and the highest ive ever seen it stacked. THUS the thread title.