Leaking bulkead solution?

[reefwars]

Originally Posted by Reef Pilot

Is it possible that the plywood is uneven enough to cause the gasket and fit on the glass side to be off a bit on one side, i.e. not flat against the glass?

that would be my guess is either the bulkhead is crooked to one side and a hole slightly too big or the gasket isnt flush to the glass, realistically the bulkhead only needs to be hand tight for the gasket to work properly provided the glass surface is clear and enough of the gasket catches the glass.