Pin Hole in Gate

[The Rookie]

Hello all!

Just wondering if anyone has any advice or guidance on dealing with a pin hole in the gate.

Cavitation: 96
Material: PET
Hot Runner: Valve Gate

I was inspecting tubes for bubbles when I found this defect and began to wonder the possible causes. I am new to injection molding, hence the name, and I am just starting to learn processing (with the help of Robust Process Development and Scientific Molding: Theory and Practice).

This is my first project, and I would really like to hit a homerun! Thanks for any help.