Ok, I've only used my new mower a few times but it's amazing how that grass dries and sticks like concrete. I should have plenty of FF in the mail tomorrow so I wanted to clean the deck the best I could before coating it with FF. I assume this is clean enough? Sorry for the crappy cell phone pic. How thick should I apply the FF, assuming I'd be using the 1 gallon can and a brush? I thought I heard someone say you only need to apply this a few times per season? Does that mean only a few applications will keep the deck good enough so that I can simply rinse off the grass with a hose? I know I can always rinse after every single mowing but that is not really practical for me, especially in spring. Just wondering how long I can expect a good coating of FF to last and how much I should put on the first time.