I detailed my boat a couple of weeks ago. The blue on the hull was really chalky. I used Meguiars oxidation remover and i worked great. used my random orbital buffer and a WOOL bonnet to apply it. It took all the oxidation off the hull. I used Armada True Wax Sealant and it was easy on and easy off. It is 100% pure canauba wax with UV blockers.
I have carpet on my floor of the boat. I had a few stains that i could not get out for years. I used Shout stain remover and scrubed it in, let it sit for 15 minutes and hosed it off. Stains gone.