M_Boats: Boat cleaning ideas?

Hi all, I've been super busy and haven't gotten to the boat in a while. I stopped by yesterday to find it pretty well doused in ash from the fires in BC. My question is, what can I use in a marina to clean it with? Water and the scrub brush weren't helping a whole lot. Its also on the dodger and sail cover. I'm aware of baking soda, vinegar and such but is there something commercial with a bit more teeth that won't get me scowled at if it rinses into the harbor water? Thanks! Jazz