A/C 2001 A6-adding a low side port

[Tony Hoffman]

BTW, you can add a low side port to nearly anything. I had to do this
on a window unit of mine, and they work great. I got it at a local ACE
hardware store, probably $10 or so. It is essentially a puncture and
seal around deal with two blocks that seal together. I refilled mine
three years ago (150PSI on the low side, 450 high side) and have had
no issues since. Oh, I had to recharge it after fixing the hole I made
in the line while trying to create a drain so the fan would quit
slinging water all over. Whew!!

Tony