Bulkhead leaking, any thoughts?

[somewherebeyondthesea]

Awesome thanks for all the suggestions I'll give it a try! They're all brand new but i did try to install them dry. The gasket is on the wet side (slip side not the nut side)

[Carlo_RS]

Make sure you don't over-tighten. Tighten as hard as you can by hand only, and then tighten an extra 1/4 turn with a wrench. That should do it.

How much larger (diameter) is the hole than the actual bulkhead?