All the parts have arrived. If it weren't so cold out, I would have already started building it, but my workshop is an old unheated, uninsulated shed, and even though I have a small propane heater, it's not raising the temperature out of the 30's. That's too cold to work out there.
The tubing that will carry the water is too stiff to make a 180 degree turn within 4 inches....the distance between each collector plate, but it is the only black tubing I could find that is UV resistant. I suppose I could have used a more flexible clear tubing, but I want any of the exposed tubing to be black to absorb as much radiation as possible. So, I had to make a design change. Instead of 3 collector boxes measuring 54" x 12", I will make 2 collector boxes measuring 54" x 20" and run the tubing like so....
