hey all, I have kind of a basic but very important question. I recently got my boat from a guy that winterized it last fall, and hasn't put it in the water yet this spring/summer, so it's still winterized from the marine he took it to. What is involved in dewinterizing a boat? I know all the water was drained out of the block, but I don't know if I just need to drop it in and let it fill itself or exactly what. I live in Iowa, so I can't just toss it in the water immediately, but want to get a bit of a head start so when the flood receeds, I'm ready to go!