Thanks for the hints, I'll try those. You wouldn't think there would be much call for scuba diving here in BFE, Missouri... but Norfork Lake is only 50 miles away and people do dive in it. There are actually two listings in my otherwise waterless town of 12,000... go figure wink

Also we do have a Coca-Cola distributor. I'll ask them too.
The medical supply houses may or may not be helpful (ditto the local hospital). It's a matter of finding the right person to ask. NOT the $8/hr receptionist. rolleyes