Thanks so much Sam for the link to our site.... Just wanted to clear a couple things up on the Dri Wash. It will work on bird droppings and bugs, of course it will take a little more work, but after you use it a couple times, you will notice bugs will come off much easier. As far as rinsing those areas first, I would not recommend it. Water will mix in with the wettiwng agents in the Dri Wash and cause it to become cloudy and it will not buff out nicely at all. Dri Wash was developed to be used without any water, so if you have massive amounts of mud or bugs that you would want to rinse off, then make sure you let the vehicle dry before applying Dri Wash. Also, the Oxygone product works great for water spots, which you will also find on our site. If you have any questions, please feel free to drop by and write us, or give us a call.