Do the initial prep very well, and it should last a few months at the least. Then take a weekend to redo it. In between, if it doesn't rain, you can just hose it down to get the dust/pollen off and spray some QD. That'll keep it looking nice. Maybe do a quick wash every 2-3 weeks and you should be okay.
From my experience, it's a must to do a wash every week especially if it rains, and JB is impossible to keep clean but when it is it looks great
