It might be a little late now, but if you want to clean that boat extremely easy go to West Marine and buy some On and Off. Apply with a sponge and let it sit for 2-3 minutes, hose off. It will actually clean the trailer too. It will need wax when you are done, but it probably needs it anyway.

Be warned, wear old clothes. It has acid and will eat through a pair of Columbia shorts in a heartbeat.

Congrats on a tank of a boat. I have fished on Cape Horn 17, 19, 21, 24, and 31’s. They are all fishing machines