Leak test right fuel tank
An initial leak test was done using the bubble method and a soapy spray solution on all rivets and seams, at a positive pressure of about 1 atm. No evidence of leaks found. The tank was then immersed in water and bubbling was looked out for - again none was observed.

Gas leak spray

Bulging at 1psi positive pressure - bottom

Bulging at 1psi positive pressure - top

Manometer setup - approx 1psi

Pool test

No bubbles observed
This post is from Adam Dickson