Capt Jim Wyatt
Hanging at the 10 Foot Stop
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I told him up front that I didn't know anything about CCRs in case he had a problem. His response was if he didn't respond normally to a signal just take him to the surface. I felt uncomfortable in that I wasn't even sure that I would be able to do that.
If that diver had a problem with his gas - such as high or low PO2 a diluent flush would get rid of that problem for a little while anyway. If the diver had a CO2 hit a dil flush would get rid of that too, for a minute or two.
A dil flush is very easy to perform, but the support diver needs to be shown how.