Skip the
electrical, its nothing but a fire hazard and no help when the
power is out. Warm up your engine. Prepare a bucket with a through
hull in the bottom the size of your
raw water hose. Hang the bucket above your engine and remove the hose from the seacock and attach it to the bucket. Fill the bucket with
antifreeze and run it through the engine and spray fogging
oil in the air intake as you shut it down. 3-4 gallons will be enough to flush all the
water out of the engine and
exhaust. Blow out your seacock with compressed air while closing it or close it with a piece of foam rubber stuck through it so it wont crack if you get frozen in solid. Protecting your seacock may be a little overkill in the Chesapeake, but if you are not staying on the
boat, I would not take any chances. Also be sure to close any other seacocks as the weight of the snow can push the
boat down deep enough to overflow some sinks and drains.