According to Teejet, these quick connect/disconnect parts should be turned anti-clockwise.
If you bought that ag sprayer brand new but not from a store, it's possible that its previous owner glued them.
Try to spray them with Isopropyl Alcohol (IPA). It won't attack the nylon, but unbound the glue and the gasket inside.
It came brand new in the box, no reason they would glue it because it is there for adding an additional line. They just don't tell you how to do it! Which gives me an idea. I will look for the accessory boom that they sell and read it's manual.
It's really odd because there's really no rocket science behind it.
These caps/nozzles/adapters just need to be twisted CCW to unlock.
That's how I was looking at it. I feel like it's about to break I'm putting so much pressure on it. Maybe I'm not pushing in on it hard enough while turning. I'll let you know if I figure it out at Tractor Supply tomorrow.
(post is archived)