Gray-water system: We've experimented with a catchment system, and using water from the sink drains to flush the toilets. The trial is declared a success, and will be put into use with the new head: an install I'm looking forward to sharing.
Washing machine: At long last, the washing-machine, I mean, 5-gallon-bucket will be retired! The high-capacity watermaker makes this possible. Another crew morale item...it may not be that critical, but it's not on the wishlist.