https://www.carburetor-blog.com/knowledge-base/cleaning-your-gas-tank/
This and along with cutting small square holes in top for hand cleaning(sludge removal).
Weld back closed. I use POR 15 3 x so far. No problems. One was 27 years ago.
Still going.


~ BD.
"You won't find me in an old folks home" Pioneer Florida Cracker
1958 Apache Stepside
1958 Apache 1/2 ton Panel
1959 Apache 1/2 ton Panel