FWIW..Are you just vaping thru your piece? I ask only because I have noticed, if 1.) its just vapor and not a combust.piece and 2.) do you change fluid EOD? if so I have yet to have anything cloud up or booger up the clarity of my glass that simple green or a citrus based cleaner or DAWN dish washing soap couldnt handle.You can buy Simple Green and some good Citrus Oil EPA friendly cleaners @ Home Depot or Lowes.
Honestly brother, lately Dawn dish washing detergent and the hottest tap water your faucet can produce and my pieces stay sparkly. Most WT dont use much fluid and w/NACE in the mix,the rigs just dont get nasty like combust.rigs do..I dont know the price of the product, but the simple green (supposedly EPA approved with no environmental impact) is 8 bucks a gallon and its concentrated, the stuff goes a long way.I ALWAYS use distilled water to keep mineral scale to non existence,with that simple protocol my pieces always are SO FRESH AND SO CLEAN.
If you occasionally burn,then get you an inline carbon filter, just bought one and posted its results, which are great. If your with company that enjoys the combustion route, they really do make a difference on the poisons being reduced and keep the rig really clean.I bought one on I-offer for 14 bucks to the door, and it does make burning 10x better IMO, but not going back to that scene full time,but as i mentioned it does help out tremendously for when the occasions arise!