a gallon or two of non toxic antifreeze
, put it in a bucket. Shut off the raw water
seacock. Disconnect the raw water
hose from the strainer and put it in the bucket. Turn the engine over until the antifreeze
circulates through the engine and appears at the exhaust
. When spring comes, just hook up the hose, open the seacock and fire up the engine.
This will protect your engine block from freezing and possibly cracking in the spring thaw. Any plumbing
that uses seawater seacocks for discharge (galley sink, head
, etc.,) needs antifreeze in a cold snap. Fresh water
sitting around a seacock ices up easily and can split the fitting in the spring thaw. Its happened to me.....a permanent leak...
How cold does it get up there? Are we talking hard ice over 1 inch thick? I found that in Boston, living aboard
over winter with heat aboard kept the hull
free from the 1/2 in. thin ice that formed and found that we didn't really need bubblers.