70/30 gas head scratcher

[Frisp]

right Guru's Im scratching my head here.
I have had a corny of stout sat on 32psi of 70/30 since october . im about halfway through it. had a pint the otyher night and it was lfeless.. but teh keg was still under pressure . my first thought was a leak..
anyhow. Step by step I went through the gas lines checking for leaks and it was holding 40psi ( test pressure ) all teh way top the disconnect.
so far so good..
Anyhow whenever I connect to the keg post the guage stops to 20psi and stayes there !!!
cant find any leaks on the keg!

surely if its holding 40psi in teh gas lines It should pressurise the keg to 40psi ?

what am I missing ?

 

[Its 6pm somewhere]

How long are you leaving it hooked up to the keg before checking? Could take a while to equalise and maybe that's the discrepancy? What colour prv has it? Sounds very odd, have you a secondary regulator to set the psi or how are you calculating the it? The regulator I have for my mixed gas set up doesn't read psi, maybe others do. Sorry that's more questions than answers

 

[Frisp]

How long are you leaving it hooked up to the keg before checking? Could take a while to equalise and maybe that's the discrepancy? What colour prv has it? Sounds very odd, have you a secondary regulator to set the psi or how are you calculating the it? The regulator I have for my mixed gas set up doesn't read psi, maybe others do. Sorry that's more questions than answers

left it a couple of days but no upward movement on pressure guage . Its. kegland mixed gas reg and it has two guages one for cylinder pressure and one for line pressure and marked in Psi. PRV is green

sprayed the corny lid, posts and prv and found no leaks..

deffo scratching my head .. im starting to wonder if the guage on the reg is knackered

 

[Frisp]

SORTED: took everything to bits. reassembled and it seems to work. I have no idea why but its back to normal !

 

[YeastFace]

Blockage in the gas in post, or gas disconnect maybe?