Hey --- watch it... Don't make assumptions... OR bad jokes... I haven't done that in many, many years.... I had asked you this same question like three times and never got a clear answer until this afternoon... and further, amongst all the posts on this thread, I didn't see that one cuz it was buried so deep in there... But thanks for the info... I might just ressurect the machine to give it a try if it doesn't work in my RinoFlow... But I couldn't help but notice that you hold one nostril closed while doing it... My machine's instructions say to let it come out the other nostril... but it DEFINITELY gets into all the sinus openings... What's your take on that? Then maybe we should put this thread to rest... Ha!