Monsoon Sherlock Colors: It's the water pipe you take along! Need your leaf on the road, but want the health consciousness of spill-proof water filtration? Sounds messy. Could be smelly too. Unless you're rockin' a Monsoon. What makes the Spill Proof unusual is a system and placement of holes within the glass mechanism that allows smoke to bubble through water easily, yet makes it virtually impossible for the water to get out. The best way to describe it is the U-Bend drain pipe/trap under your sink.