Aft bilge compartment does not drain into into the sump, and is directly connected with engine compartment, which should not drain into the bilge. Any water in here will flood the batteries and cabin sole before reaching the sump, which increases the likelihood that one will be unable to start the engine during circumstances where it is most needed. It must be pumped out manually and Beneteau told me to use a spnge!. Beneteau claims that this compartment should not leak. However, it can and has. With the engine raw water through-hull valve and the rudder bearing in this compartment of the grid, there is a potential for a leak. This occurred multiple times on my boat due to a poorly installed rudder bearing, and resulted in flooding the batteries and cockpit sole. I am currently seeking a solution that is satisfactory to both me and Beneteau, and would welcome any comments.