We have a 2006 Supra Gravity Games Edt. It has 3 bags for onboard ballast already set up on pumps with switches. We also have two other bags that we fill along with the three. Could we install a fill and drain hose off of the pumps that are already in there by branching the fill and drain hoses and just adding a valve, so we would be able to fill and drain bags that were sitting in the bow seating and floor. If this is possible will the pump have enough force to push the water up above pump level to seat level?
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