Ok so I just got my fatty pipe off eBay & I cleaned it up with a wire wheel, looks brand new now... Only problem is that while I was cleaning it I noticed what appeared to be a little bit of grass and some sort of like dog hair towards the end of it, I'm nervous there is more then what I can see on the inside (maybe the seller kept it in his back yard with his dog to guard it from thieves? Haha) my question to you guys is would it hurt anything if I put carb cleaner or something along those lines inside of it & shook it all around to get out any foreign objects?