I put this in last year and put it away for the winter. Here we are again, up and ready. I love this thing. I get home from the field and hop right in, no fuss, no muss. The tube leads to the woods. Solar power does the warmth. The tube is perpetually filled with water. I wanted a little more heat this year, so bought this garden hose to soak up more sun...it runs as supply for the tube/shower.