Yep, I've got one of those separate plastic shower bilge things with an automatic centrifugal pump in it. I have the AC condensate and shower pan plumbed to it with one remaining spot for the anchor locker. The output Ts into the head sink drain and straight out the boat.
Is there a pic of that anywhere? Mine doesn't have this. My drain goes to a pump in the engine compartment then pumps out the bilge pump throughull.