Dear Editor, Thank you, Agassiz, for providing the Sani Dump at the fairgrounds. We have used it many times and are grateful for its convenience as are no doubt many other campers in the area. However, what a disturbing sight last week to see grown ups, with trailers much bigger and more expensive than ours, lining up, like kids for a free popsicle, at the side where the machine was broken and hence free. We will gladly keep contributing to your…