This is my first time of using my new Sankey Kegs, I filled the keg with a lovely Golden Ale, inserted the spear and purged the keg by releasing some CO2 with the PRV.
I then pressurised to 20psi thinking "That will all get absorbed" and I did the same last night, but then went back to see how much it was absorbing only for the gauge to read "0"

I then realised that the 1 way valve on the "gas in" part of the coupler is stopping gas from reaching the regulator gauge and telling me the actual pressure in the keg. Now short of leaving the gas "on" at the final pressure I want and waiting for the pressure equilibrium to be reached, how can I tell what PSI the keg is at now? Also I have a leaky gas setup, so right now leaving the gas on is not really an option until I find the source of the leak, which is either on the regulator tail barb or the coupler as that's all their is to my setup until my bar is built.
Thanks
HLA91