Before we left Noonan Beans took me down the alley behind where we were staying. She wanted to show me the hillbilly solar water heater on the roof of a shed. That is three one hundred feet long coils of irrigation tubing setting up there. Don’t laugh. This really does work and the water can sometimes be too hot to use. I have a black one gallon jug I set outside in the sun while in the desert and it has at times made the water too hot.