Talk:Bulkhead/@comment-5075721-20160204230835/@comment-198.2.39.154-20160210193050

It's one of those things that only becomes useful the more of them you have. If you spring a leak in deep water, being able to retreat to an air pocket in your base is very important if you have a lot of leaks or your base is large or confusingly laid out.

Also, be careful with propulsion cannons. Flinging spine fish around recklessly can and will flood your base.