Hi mate! Welcome to Subsim.
Forum member and fellow GWX Dev Teamer "JScones" has produced a program called SH3 Commander... Using this program you cand change the water opacity. (Water opacity is for many users, monitor dependant.)
Give me a moment and I will post the links to SH3 Commander here.
In the meantime... since you are a "Bilge Rat"... here is your potato peeler!
Fritz is waiting for you in the galley.
Its onion peeling time too.
Be right back.