Posted by AADIVER on January 06, 2001 at 08:05:38:
In Reply to: RBCR posted by John Walker on January 05, 2001 at 23:43:45:
John, you and this Board have convinced me that helium mixtures and reduced nitrogen are safer, healthier breathing mediums at any depth. But you've confronted us with a serious dilemma: apart from one or two shops, our only choice is to get trimix and blending certified and rent the big He tanks. Even then we can mix for only one charter boat dive. All subsequent tank fills are with 80% nitrogen, thereby negating the whole reason to replace nitrogen with helium. I don't see a solution to this dilemma until the sport diving industry accepts and promotes heliox mixes and the fill stations on both land and sea become more numerous.
As to your query about RBCR, I haven't a clue.