I have been chasing a co2 leak on my kegerator for months now.
I had the system in storage for a year after moving to new home.
As last resort I have taken the distribution manifold and all gas lines and submerged them resulting in no leaks.
I built a spunding test setup to check keg leaks. I...
I found out the hard way that pin lock kegs use a slightly larger o ring. Found that on this forum. Replaced all my newly replaced and leaky smaller o rings with the larger ones and problem is resolved. Bought pack of 100 from Amazon #112 for $6. 23 - 1/2 x 11/16 x 3/32