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 I know this has been discussed before but still confused. 
I understand that if I have a plexiglass panel in my outer wet hull, it 
will collect 
bubbles and obscure view.  
My question is does this really happen at any depth? I just am not 
understanding how 
this could happen under pressure. 
I am trying to improve resistance with an outer hull but do not like 
keeping an opening 
for my lower view ports.  
Can anyone enlighten me on this  
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