Almost all the time I struggle with connecting and disconnecting kegland ball lock disconnects to the metal corney keg posts. This includes the duotight disconnect which I use for pressurising the kegs. They seem to stuggle with getting over the ridge on the metal corney keg post.
Maybe sometimes its not a nightmare but that occurs maybe 1 in 10 times. Usually I have spray wet sanitiser, wiggle the disconnect and put a huge amount of downward/upward pressure to get it on/off.
I have rececenty taken to replacing the o rings on the posts but I dont think that's helping; I'm replacing unworn o rings. I have 6 corney kegs which I use in rotation and it occurs on all of them. Do people use lubricant on thier keg posts? I dont so maybe that's it?
I have even disassembelled the disconnect so there isnt any pin, spring etc and its still very hard - so its an issue with the body of the disconnect.
I want to see if I am doing something wrong here? Most people cannot be having my experience as if they did there would be a lot more posts about it!