Thanks for taking the time to look out for my safety. I'll be printing your information and looking at those items on the boat at my next opportunity. I had already planned to swap out the Racor, current bowl is plastic. I'm not sure what all of those nuts are on the top of fuel tank. You noted they are on the port side; I looked at the photo and it looks like they are along the rear as well. I'll have to get some more photos and let you know. Also good advice on the shutoffs for the Racor.