I came across an article regarding testing a new fuel tank with smoke but
heck... I can't find the link... I will post here once I find it.
Roughly you put smoke inside the tank, close it and check for smoke around
the tank where they weld the 2 halves.

On Fri, Sep 9, 2022 at 12:27 PM Eric Caron <ericcaron96@comcast.net> wrote:

> So, the Spectrum gas tank arrived.  It seems solid and undamaged. Packing
> was minimum so I’m pleased it seems fine.
>
> I’m wondering if folks think it is important to prep the exterior in any
> way?  Undercoat, paint, wax? Or, does it matter as the interior will fail
> before the exterior?
>
> How to pressure test?
>
> I’m still waiting on the soft parts that are needed to complete the
> refresh so won’t be doing the change until I have everything.
>
> Tips on tank prep appreciated.
>
> Eric Caron
>