I think I may have made a stupid mistake. I was cleaning all of my glass pieces with rubbing alcohol and salt, when I decided to do the same with my new little acrylic bong. After I'd shaken everything up for a little while I emptied it out to rinse it and take a wet paper towel to anything still left in there. What happened instead, is that once it started drying there was a white film left behind that I can't seem to get rid of. A quick google or three turned up v. little information, beyond "it can break your piece!" and "it makes it brittle." Doesn't seem like it did any of those things, just made it an eyesore. Has anyone else had this problem? Is there any way to get rid of the stain, or did I get a nice little abstract paintjob? Is it still safe to smoke out of?