I have a outboard 1990 force motor and want to install a water/fuel separator. First, I have 2 inlet arrows and 2 outlet arrows at the top of the bracket. Do I use the both inlet and outlet arrows directly across from each other or do I stagger them? Secondly, do install the filter before or after the primer bulb. And lastly, do I remove the inline fuel filter? Newbie here, so your help will be appreciated.