[swdw]

Posted my correction earlier- should have added a follow up telling you I'd corrected it. As stated before your post, I stand corrected and had misinterpreted the erlier info I was looking at.

Now to get back to the valve-

I was talking real life situations which may not apply to this valve. Tater has stated twice that this is an indicator of hull damage. In this case the hull damage is obviously NOT repairable by the crew. Although there are amazing repairs that can be made at sea, not everything is fixable. And as I've stated, just because you think you bottomed perfectly doesn't mean you did.

And as for the pics, nice to see you followed the link I gave you and then went to the sub manual link on the same page. Was hoping you'd look at the manual.

Oh one more thing about bottoming, settling at a shallow angle can cause damage to the hull when bottoming besides the other stuff mentioned.