so kind of curious about the ballast on my 1981 28foot Lancer. are these tanks optional to have filled or empty? What tanks do the sinks in the cabin pull from. I know I have one option to pull from the cooler then there is another option that I can use to pull from the tanks, the question is where are they located and how the heck to I fill them up? When I first got the boat there was some nasty water in the tanks and so I emptied the tanks through the sinks to get the smell out. well nowwww I have no ballast it seems and my boat just rocks so dang hard...any info is appreciated.