I see on videos and also I think I read somewhere on forum, moisture trap goes after quick connect on to airbrush. So like this: hose > quick connect > moisture trap > airbrush Now here is my question. What is the reason it needs to go after the quick connect. Because, if It would be before quick connect you would need to buy only one moisture trap. But if it's after quick connect you basically need moisture trap for each airbrush. Waste of money... So, anybody have a clue? I am really interested in the explanation.