Good, I finished my completely DIY nitrous setup, even I had an idea to do a nice write up... BUT

Unfortunately we donīt have where to refill in our town. So I went to a local welding/medicinal/industrial gas provider (a biggest one).

So they acepted to fill my 4lbs bottle.
Payed 50 bucks.
Waited 4 days.
The bottle is in my hands. Suspiciously light...

When I connected it to my system, manometer said: 550 PSI (at 25 deg. C, lol).

When I attached my nozzle and tried to spray in the air, itīs just gaseous nitrous flowing, not liquid
yes; i know. My bottle has siphoon tube. However, I tried to spray holding the bottle upside down. Same ****

Itīs sad. Iguess they just filled it up like for dental anesthesy use, with pure gaseous...
Or perhaps they didnīt weighted the bottle correctly

Iīll going to refill it, and will try to describe to them what exactly they got to do now. But Iīm not sure they will do it right way...

Any suggestions?