How do you transfer? First time I tried it went everything smooth.
Now I can’t do it. Every time I want to try to draw in it doesn’t do anything. Tried to backfill and for some reason there is a pressure when trying to transfer to a 10ml vial.
Tried to pull the plunger to the end but nothing.
I have watched a YouTube videos how to do and for some reason it doesn’t work.
EDIT: I’ve used 18g needle and now it’s fine