How about a cable similar to those used on lawn mowers that can push and pull? You can see what I am suggesting on ebay as a lawnmower throttle cable. I would like to find something a little heavier to get the push pull needed.
Only need a 3/8th hole and a guide to make a 90 degree bend behind the shut off.
Currently I just pull the inside valve and connect the hose on the outside before pulling outside valve.
If anyone tries this before I do then keep me updated!
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