Tube gluing test

For the upper tub fitting, we're trying to get rid of the leak potential
fromt he fitting and o-ring. So we drilled the hole out to .250 for the
tube to be insterted, then drilled out a bit with .015 and .030 rees
around it for the glue. Then we made holes from the outside to be able
to insert the glue with a syringe.

We did the .030 one first, but hte hole for the syringe wasn't big
enough. It worked, but with effort. On the .015, we drilled the hole
out to .160 to make room for that syringe. Then it worked beautifully.
I like the .015 better because it requires a thinner layer of glue.