Hey, what degree of slope are you guys using on your patios for drainage? I have read many different views. I have always had a minimum of 1% but have read that 2% is supposed to be a better fit but seems a little excessive for a place where someone is going to be using it for tables and drinks. The next loaded question is what process do you use when you are trying to set the slope on a raised patio that is a simi circle. I have a laser and rod and could probally figure the math on it, and obviously you can't pull a line on a curved wall. I know that i will the point of my wall to be the lowest point. Leveling a wall is so much easier than this. Does anyone have any opinions on the best way to do this?