#3936
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Sounds like your divers have a blockage in their eustation tubes which is preventing them from equalizing,
This could be due to several reasons such as scar tissue, inflamation, mucus or improper formation of the eustatio tubes.
Some times if you get them to start to equalize right away and then very frequently it might help.
Of course other causes should be ruled out medically by a physician prior to any further attempts to dive.
More info can be found on either of the two websites.
http://www.diversalertnetwork.org/
or
http://www.scuba-doc.com/
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