Dammit man, the bilge is cleaner than the deck. I subscribed thinking you had a miracle cure for bilge cleaning. I got busy with a toilet brush and some purple cleaner before the last event. Still waiting for the skin to grow back on my knuckles.
I usually mix up a bucket of water with some dawn dish soap, disable my float switch and go riding for a day. The dawn swishing around in the bilge breaks up a lot of the crud.