I thought I'd dig this thread up to confirm Road507
setup. For me, he/she solved the last piece of the puzzle....
As seen at page 7 of this thread, I figured out a way to connect the Fluval Regulator to whatever setup I was attempting to attach with a piece found at Home Depot (see image I placed in a post on page 7). The Fluval regulator was not "spring actuated" as was speculated at that point.
The missing link was a part that could connect the 24oz (or whatever size) refillable container to all (about 3 pieces in total) the brass fittings that were going into the regulator. I went to Home Depot, Canadian Tire and a few other department stores and speciality stores (Paintball shops), and left with no resolution.
piece.... was the coiled remote adaptor used for paintball guns. It was, in my experience, the only way to connect the container to the setup. Its sucks on one hand because the remote cost over $60. But on the brighter side, it also has a knob that allows you to control the amount of depression placed on the pin valve, thereby controlling how much pressure goes to your Fluval Regulator.
I hope this doesn't crush my chances of one day working for Fluval..
Anyway, it finally worked for me. I know some may say it would have been faster, less time consuming, less frustrating, and arguably perhaps cheaper, but... well, it is what it is. It was a matter of prinicpal....
So, if anyone has this setup and has been wondering how to convert what they have to a refillable setup, this is "one" way (the only one I've come across) to do that.