Thread: How to: Clean gas tank?

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Originally Posted by firebird77clone

I'm thinking to purge the air with argon/ CO2 as well. Explosions are bad.

MEK is NASTY and you really don't want to be breathing the vapors or soaking skin with it.

For purging I would suggest you follow the procedure used for aircraft drop tanks that need work. AFTER you've dumped the tank and properly disposed of the liquid, fill it with water, then push your garden hose down into the tank and turn on the water to overflow at one GPM or so, then leave it alone for a minimum of 12 hours. Air/gas purge can trap pockets of MEK - no way to guarantee it's all flushed away.