Ok so I just got my new mvp 20w a few days ago and I put my rosy on it fired it up at 14w and oh man now I understand so good although black licorice is a bit harsh lol but that is what I had in the
tank lol
So right now I need to deep clean my rosy any suggestions
When any of my atty's are new in the box, I give them a Baking Soda / White Vinegar bath. Then onto a Dawn liquid dish soap and hot water wash next, rinsing in between each of the baths. Examining the atty afterwards for left over machining bits or the hint of machine oil. If you leave any o-ring on or screws in place oil can be in behind those so be sure to take the unit completely apart.
When washing out a regular atty I take it apart and just use the Dawn soap, hot water wash then rinse. You might have to change out or clean the ceramic cup if the licorice flavor lingers badly in your new
juice.
The best way I have seen to clean the ceramic cups is not with soap and water or any other cleaning liquid. Take the cup out of the unit and hold it with tweezers, heat the cup with a small Butane torch like you would use for oxidizing mesh. The ceramic cup with come stark white again and just like new. Do not immerse the hot ceramic in water or anything, just let it cool slowly in the air.