I've had two beers now that I hooked up to service pressure (+/- 9 psi at 40ºF).......a week + later I tapped them and, nada..... FLAT.
So I hooked them up to my 30 psi hose, gave them the 5 minute "rockabye baby" treatment, and presto....two hours later everything hunky dory. (Except for the sediment that was back in play)
So, from now on, the 5 minute hula, then on service pressure for a week to clear up.
The question is.....how in the world can they be hooked up to service pressure for over a week and not absorb any CO2