Thanks, but still some work to do.
When it rains hard water enters somewhere trough the port deck window.
Not much, but annoying...
In the past, some of the screws that hold the windows in place were replaced with screws with conical heads, causing them to crack the plexi around them...
Bought some captain tolley stuff and will try it.
But if i can't fix it that way, i will fabricate new windows.