I have a couple of drip tips that simply do not want to be inserted into my tank Cartos.
The O-Ring hangs and I can not twist or push it enough to get it into the Carto.
On one, I can take a fingernail and work it around the O-Ring and finally get it to slide in.
The other one--no way. It is a new Delrin tip.
I have lubed them with e-juice and "bodily fluids".
Do not want to tear them up with more force.
Just me ??, or any ideas??