[Shop-talk] fuel tank leak

[Dan and Jenny Fest (Coles Nurseries Inc)]

I am rinsing my antique fuel tank with MEK to clean it out and prepare it for
sealing.  Two questions: First, the tank has a leak in one of the seams about
2/3 of the way up.  It's not too bad but still needs to be fixed.  I can't get
to the spot on the inside.  Is there a putty or caulk that I can use on the
outside.  Secondly, it's  a 12 gal tank and I have 10 gal of MEK.  Can I
swoosh it around or do I need to get 2 gal more to do a decent job ?
Thanks,
Dan