We measured gallon by gallon, calculated the correct spacing and cut out a negative on vinyl. With that done, we moved to the blast cabinet, and began the process of etching the lines and numbers on the pot. I was a bit hesitant about how the final product would turn out, but my worries proved to be unfounded. We measured twice and cut once, and the numbers hit exactly where I needed them.
Next, I added a weldless bulkhead and valve. Drilling stainless steel is always a chore, so make sure to use an oil of some sort - I prefer 3 n 1 oil. First, I drill a 1/8" pilot hole, and then move up to a step drill bit. Open up the hole to 13/16" and then de-burr. Place the stainless close nipple through the hole, attach the valve, heat resistant o-ring and nut, and tighten by hand. Teflon plumbers tape is essential in this process, in order to form a watertight seal. This addition was a success, it holds water and does not leak. All it needs is a soft copper dip tube, to draw liquid from the bottom of the pot.
Gallon markings etched.
Weldless valve added.
Internal view of weldless bulkhead and volume markings.
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