I am new to owning a larger boat and it will be staying in the water all winter.That being said, I am trying to figure out the winterization thing. I think I have the cold water figured out, but why does everyone say to bypass the hot water tank? Should it just be drained? and Why?If I am just running pink in the lines, why not just use air pressure and blow the lines clear? Where does the shower drain? I have not taken the floor apart, but are they usually attached to the vanity drain?Some of my neighbors say that since the engine has salt water in it, it should not freeze (for some reason I don't trust that) being in the water. I intend to winterize the engine, do you just disconnect the seacock (shut off) and put the line in a big bucket of pink stuff?Thanks for the help