Winterizing
We are in Eastern Tennessee and winterize in the water from December to mid March. Most of the time it is a wasted exercise but there are times when it stays in the single digits for several days and it is worth every penny. Do main engine, generator, fresh water, air conditioning, heads, wash down pumps. Some boats at our marina leave their heating system on over the winter but my feeling is that this is taking a big risk since there can be power outages at the worst time not to mention the risk of a hose problem and pumping the boat full of water.