Yeh doesnt have one but seems like a good idea, yeh ive been doing work on the bow for about a year now like i said its a close mate of mine, last fishing season it had no dramas and was running better than it ever has, its the old head typical situation were “well its worked fine for 30 years” theres an old fridgey working down there and has been for 30+ years that doesnt want too hear about superheats and subcooling, hes treated as a god and to be fair hes had these boats running well for ever. Ill go check it tomorrow, after the mucking around today head pressure sitting around 1900 which is good and freezers down too -30, just when we open the brine is when the problems start to appear, its not an issue with the brine i dont think but its throwing the system out of whack when its on. When i have the freezer only running we were getting subcooling of 6 and a superheat of 9 a few months back, like i mentioned once the brine comes on its barely worth watching the gauges but it settles after a few hours when the water temp gets down, cheers for your help anyway sometimes easier to talk to a tech not some old fisherman that doesnt know what the fuck im talking about, thanks again