I have decided to raise the floor in my jon boat. I am going to use aluminum sheet for the flooring. I want to put hatches in the floor but I dont want the plastic hatches sold at bass pro or one of those places. what I am looking to do is cut out holes in the floor and use a piece of aluminum for the cover. my question is how do i go about making this waterproof?I thought about putting a channel around the cut out acting as a water trough from there connecting hose to it and running it over board. does anyone have any other ideas on how to go about keeping water out of the storage area?