Quote:
Originally Posted by Zoaelite
Are you sure there are no chips? When drilling our returns the final punch through caused about a 2cm X 2cm chip which caused for some major head aches. Although it makes the bulk head practically impossible to remove after silicone will work wonders to stop the leaking.
Don't over tighten though, this is a very fast way to break your glass.
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+ 1 totally agree, it's not unusual to get chipping on the punch through and the silicone seems to do the trick.