Tsunami Dual Outlet Aerator Pumps. The advantage of the dual outlet is that you can feed multiple applications through a single thru-hull fitting. The Tsunami second outlet is integrated into the pressure chamber, so it looks and pumps like part of the aerator. Both of the pump's outlets are engineered for the precise position and angle that will deliver optimum performance. Output Performance. Get twice the value because the new dual outlet Tsunami Aerator is actually a multifunction pump. Both outlets are engineered for the precise position and angle that will deliver optimum performance. You get separate outlets for two livewells. Run a livewell and a separate low-pressure washdown outlet The advantage of the dual outlet is that you can feed multiple applications through a single thru-hu You get separate outlets for two livewells. Run a livewell and a separate low-pressure washdown outl