Apologies for the thread necromancy but have just tried to set this up and no joy.
The bottle is a JBL m500 refillable. Supposedly brand new and had a green plastic seal over the external thread. Have screwed the lunapet reg on and no pressure.
Tried the cylinder valve on the "auf" (I assume on") position and the "zu" (I assume "off") position. Nada.
Tried taking reg off and screwing back on several times and not a hiss. Thing is there doesn't seem to be anything on the reg that would insert into the bottle to allow gas to be released. On my disposable kit there's a sort of needle like thing sticking out that goes into the bottle that presses down a valve to allow gas out. Do refillables not have this?
If so is the valve on the top of the bottle the only control on gas release? What if it gets moved accidentally? Thing is when I got the bottle home it was already in the "auf" position. Could it have been accidentally opened up and emptied in the shop? This doesn't seem very safe.
Any help much appreciated as I now have no co2 going into my main tank
