@heisenberg34 Thanks for that...it's basically what I observed in the Navage video. Again, what I fail to understand is their descriptive use of the word "suction." In view of what is clearly a nasal wash mechanism, it seems inaccurate and misleading. There's no sucking out of mucus or anything; i.e., it's push and not pull. (Note: I'm an editor, thus pretty sensitive to this kind of thing!)