I have recently cruised to abaco with my family and had a difficult time turning the valves for macerator pump-out! I stood on my head thru a lazarette cover and nearly got stuck upside down in the process.The other alternative is to remove a battery or two and acess the two valver that way. Has anyone else experienced this difficulty? I am now back in FL where I can go to the city dock and pumpout. I would like to modify before I cruise next.Also I can"t believe the vent location. Has anyone relocated it with any success?