Any reason for the galley sinks not to drain? I just launched a week ago and I was commssioning my water systems when I noticed the galley sinks would not drain. The through-hull valve was open. I replaced all of the hoses, they were in poor condition anyway. I checked for water flowing through the through-hull, when I saw a trickle I closed the valve. Unless someone has a better idea, I plan on blasting the opening with a garden hose with a small tip. I just find it hard to believe that in one week, with cool water something can be growing in the opening already.