Thought this topic could use a little boost.
I only just found a regulator that goes up to 25lpm with CGA540 connector.
I ordered it on amazon US, and hope that it fits my bottles (the connector is kind of a gamble). It should be arriving next week.
No way of finding this in Europe.
I am still looking into building an affordable demand valve.
My initial idea was to build it with a cheap scuba regulator and bottle, but found that too expensive, till i saw this post.
Now my only question left is about the 2 connections on the regulator.
is it so that the barbed and diss-connector have a different output?
or does the diss provide 25lpm as well, and is that plenty for the scuba regulator?
If 25 is enough, i can probably build that as well
If not, it's probably impossible to find a regulator with CGA540 that'll work with the scuba gear and i'll have to look elsewhere.