30.105 J.W. Bloemer – J.A. Eibling – J.R. Irwin, Design of a basin-type solar still, (Battelle Memorial Institute, Columbus, Ohio, 19 may 1964). Step 17: Continuous stainless steel strips (4 inches wide by 0.005 inch thick) to form distillate trough rolled out on top of lower concrete beam. Note lower beam is slightly different from that recommended in step 3 and 4.