Thanks for all the pics and updates OB

.
If you are going to drill into a fridge to fit through gas lines, taps etc, open the door of the fridge and let it run for 15 - 30 minutes. The sides of the fridge will get warm where any cooling coils are. Any cool areas should be safe to drill. Even so, use a 1/8 " (3 mm) bit to drill a small hole in the outer skin to just pierce it. Then use a bit of bent coathanger wire to "feel" around the insulation to double-check you are not going to drill or holesaw through anything important. If using a holesaw, once the pilot bit protrudes through the outer skin (metal), stop drilling and then re-start drilling from the inside (plastic) to give you a neat hole.
The John Guest fittings are great. If you are using them for gas, like any fittings, keep a close eye on your regulator volume gauge after you install new fittings. A tiny leak can empty your gas bottle overnight so try and do your install in the morning so as you can check your gauge every hour or so through the day.
With the JG fittings, make sure you don't put them into really bendy spots - use a JG 90 degree fitting if you have to. Set up right, these fittings are amazing. I have disconnected a whole series of these fittings from the gas source (one way valve connected) and 3 or 4 days later pulled a fitting apart to hear the hiss of retained pressure escaping!
Cheers OB,
PP
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