ksanders
Moderator Emeritus
My opinion is that you should not be able to "create" a leak in a properly bedded through hull by sanding, sandblasting, or otherwise disturbing the hull around the through hull.
The fact that you now have a leak is more symptomatic of a through hull that was marginally sealed than of any poor workmanship by the yard doing your bottom job.
The fact that you now have a leak is more symptomatic of a through hull that was marginally sealed than of any poor workmanship by the yard doing your bottom job.
