O2 tubing tangles. Yesterday I decided to insert a swivel in line on my
tubing. To soften the tubing, I heated some water, and held the tube end
in it for a bit, then worked it on the tube. After getting both ends on
the swivel, I dunked it in the water. Only to see bubbles coming out. Further, I checked the flow { I do this by directing the flow on my eye}. Seeing the leak, and recently having the experience of no O2, I decided to just install a new tube. Clearly the flow was considerably higher w/the new tube! So use swivels with extreme caution.
ed