Annoying seacock knobs in my SAN...

Hey guys I am still getting used to everything on my 99 SAN. One thing that I just cant seem to figure out is the stupid seacock knobs below the throttle. I replaced my tanks in the rear with bags and evrything seems to fill or empty (kind of) whether the knobs opened or closed. It is to the point where I am just getting annoyed by them. When I replace my aerator pumps with jabscos can I just get rid of the two seacock knobs or will it mess something up?

The knobs were a vapor lock that would keep the water from draining out once the tanks were full. They would also keep the tanks from filling if they were closed. You can take them out and chunk them if you have bags. They serve absolutely no purpose now.

Well then chunk them I will! thanks brad