Stop. Fight the urge.

This is a legitimate post, now.
Ok, so I know I shoulda, coulda prevented this. But I didn't. Now what do I do? I have no room inside the v-birth to get a cheater bar on the handle for leverage and there's no budging it by my manual effort. Do I dare a big ol' hammer? Or will that comprimize the hull? Other options shy of removing the whold damn thing? And how bad is the idea of leaving in the open position? It runs the overboard from the
holding tank, but I've got Y valves ahead of the that render is unnecessary.
Thanks, all.