I know not many of you use the e-flow yet; but, I thought I would post this question anyway. I have had problems when I put the medication in the med cup. Sometimes without warning the medication just goes into the cup and disappears down into the system. No matter how good I clean it or how carefully I put the system together. I even got a replacement and thought I solved the problem but it happened again today. This is a big deal cause it wastes the medication. What on earth am I doing wrong. I clean it, I carefully assemble it, I test it. There is no telling when this is going to happen. It is getting on my last nerve to wonder if when I put the med in the cup if it is going to stay in the cup. Help all you e-flow users. I think the company thinks I am crazy. The tretment ends within about 10 seconds, far short of the necessary time, and then when you open the e-flow the rest of the med runs out from where the head meets the aerosol chamber. Help!