I use a PISA. I always seem to get "sweat" in my pump tubing. Where does it come from? It even happens when my pump parts are clean and dry from days before. Is it just residual water in the parts or am I doing something wrong?
Now my tubing has what looks like dry water spots inside. Should I get new tubing and start over? just clean and dry it?
I go back to work this Thurs, and I'd like to clear up the problem before I start working.