I have 2 kegs hooked up last week in my new Keezer build. A Peach Wheat Ale and an English Brown Ale. It’s been 5 days and the Peach is carbonating nicely. The Brown Ale however is still flat. I checked the gas connection and re-fit it, just to make sure. It is flowing nicely by is far less carbonated. I see and hear no leaks, no I am just wondering. The Peach ended up being shy of 5 gallons,…more like 4.5 and the Brown Ale at 5 gallons. Is this why? The Brown seems to be flowing better though after re-fitting, so maybe it wasn’t sealed good and not getting gas. I have them on a 4-way splitter with just the 2 kegs hooked up.
Check your lid.