How/what to winterize for living aboard in Great Lakes
We will be living aboard a 1981 Catalina 38 in S.E. Michigan on Lake Erie (we are currently on Lake St. Clair). What do I need to do to winterize the systems? Do I have to empty my water tank (under the V-berth), or will the cabin heat keep it from freezing? Will I have to clear all the lines for the engine then shut the seacocks? Add antifreeze? Since we will be living on it and it will be heated, I don''t know what level of winterization is necessary. Any help/advice would be appreciated.