ed-correct me if I'm wrong but it's a timer system. mastercraft has been doing the same thing in the x-2's and I remember a lot of debate on how to change the timing. need to set the timers based on bigger bags, which I would assume ed has since he's running the larger rear setup. bags drain out the same place they enter from, since there's only one pump per bag.
I am real curious how the dash monitors bag filling as well. easy in hard tanks. maybe something that measures the amount of water past a point? I would think there's too many variables in filling based on timing a bag full?

our dealer doesn't have a new supra yet. been watching.