Header tank practice

Took a left-over piece (only about 5" long) of the 6" diameter aluminum tube that will be used for the header tank, and then made a 6" alum. cap (1/8 inch thick) to fit on top.  I used a band-saw to rough cut the circle, then a belt sander and deburring wheel to turn it into a better circle.  I tacked the alum. cap to the top of the tube in 4 spots in preparation to TIG weld the entire seam.  This is basically a practice piece for the real tank which will be made from the same tubing, but is much longer (19").  Note to self:  make sure to keep plastic Sharpie markers away from welding table.  Hours: 1.0

Practice tank with alum cap, next to a slightly melted Sharpie