If you’re having Zerk problems i feel bad for you son, I got 99 problems but the Zerk ain’t one.
It’s amazing how many tutorials are wrong.
It took me years to finally realize I was using my grease gun wrong. I thought you just slammed the coupler onto the Zerk, pumped, and pulled it straight off. Like many, I struggled getting it to go on, I loosened the coupler, thought about buying a Lock ‘n Load, and just cursed a lot. Then I watched a vid on how the Zerk is designed to accept the coupler at an angle and seal when the coupler is in-line. Removal is the same, move the coupler off angle and it should be easily removed.
Finally found the vid, the best visual is at 3:45…