When I tried to flip mine round it wouldn't screw back together Wally. It's like a one way fitDid you and yiddle try flip flopping your tubes end for end? The odds on both ends leaking are pretty slim unless you are missing o-rings. Or the bottom cap itself is damaged with a nick or something.

where it's
I don't get why they did that either. I was surprised when I first got mine and went to put it together and I couldn't get it to fit until I turned it the right way 