Re: walnut shells and compressed air

ken /
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Get walnut shells or similar material (in small pieces) and a large volume air compressor. Put the shells in the tank, insert the air line and blow. Move the end of the hose up and down in the tank. Reduce the end of a vacuum hose, stick it in the tank and suck out the rust and shells.

The walnut shell technique is used for cleaning the carbon out of laboratory test engines.

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