It seems to happen to us newbies but I decided to buy the top of the range Keg from Ballyhoo Followed all the instructions on how to use it.I then filled up with the beer and priming sugar and left it to do what its meant to do. after a couple of days I looked at the pressure and it said 5 PSI then it went to 4.5 psi and now it has gone to Zero I tied a co2 gas But that has made no difference so what has gone wrong. I was informed that it was pressure tested before it went out and it was OK Please Help as I have 42 Pints in there at the moment.This is the keg I have got https://www.balliihoo.co.uk/registe...2-injection-valve-pressure-indicator-p-4.html update took the cap off the beer is flat looks dead as a dodo is that because I put Co2 gas in when the persure said zero and should I add more sugar if so how much to get it started again for 42 pints?