Has anyone updated the gravity 3 system with a single reversible pump and three electric ball valves? The boat I just bought has the system removed and I’d like to upgrade vs just reinstall. I have seen a few different ways of doing this, the 1,000.00 wakemakers system, three tsunami pumps, and just ditching the sprinkler valves for electric ball valves.

I’d like to put a king pump in place of the stock fill pump, and wire in three ball valves and figure out how to wire them so the valves open for fill and drain and be able to reverse the pump. Or keep the stock pumps to drain the bags. I was going to re route the drain hoses to fittings on the sides of the hull to act as vent/ overflow.

Am I trying to reinvent the wheel here? I haven’t seen this one done yet.


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