I ordered a clay hand pad and some other stuff today, I can't stop buying your products, and I have a couple of questions about the hand pad. While you are claying, do you need to rinse/clean the pad off before claying a new area? I would make sense to me that you would need to clean it. Otherwise you could be removing debris and then spreading over another area. Second question, if you do need to rinse/clean, what would be the best way to do that? A bucket of water with a grit guard, just spray the pad with more clay lube, or is there a better way to do that?