You might try posting your inquiry at morgan41sailboats : Morgan 41 Sailboats
I have a different water tank lay-out on my '73 OI 413, but you will find advice for your 416 at this owners group. 'take care and joy, Aythya crew
11-02-2009 01:38 PM
OI 41 Owners - Water tank help!
Our 1980 OI 41 has decided that it's water tank (main tank) needs replacing. I have been to D. Fansler's website and have seen how he replaced his tank. Does anyone know of someone else having a website with water tank replacement on it? And, does anyone know of a production tank that can be used as a replacement rather than having to pay $$$$ to have a custom one made?