Formula 290 Bowrider: As we move forward, the companion helm seat to port is a nice addition for this year. In front of that is the walk-in head. It has 47’’ (1.19 m) of vertical headroom. It has a sink and a VacuFlush head. There is a 23 gallon (87 L) holding tank and can be pumped overboard where permitted. Dockside pump-out is standard.