Re: Gold Coin Recoveries 1733 Spanish Treasure Fleet
September 30, 1999 at 17:34:51
In Reply to: Re: Gold Coin Recoveries 1733 Spanish Treasure Fleet
posted by CJ on September 27, 1999 at 07:45:02
An airlift is a pipe that is held by hand underwater and when air is pumped to it from a compressor on the surface, will allow the air to escape out the top causing great suction that draws sand, shells, etc. off the bottom like a vacuum cleaner.
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