Myself and a colleague are in the process of teaching our non-diving colleagues to dive (we both work part-time as an instructor and DM outside of our full time jobs). One of our colleagues had an issue where her ears would clear, but then re-block without changing depth. I think in about 25 minutes we managed to get down to 1.5m before just canning it entirely. It is possible she has the remnants of a chest infection/cold which cleared about 1.5 weeks ago that she doesn't notice on the surface, but was enough to cause issue underwater.
But the issue that concerns me was the clearing and re-blocking, as it's not something myself or my colleague who was instructing has ever come across. Any ideas?
But the issue that concerns me was the clearing and re-blocking, as it's not something myself or my colleague who was instructing has ever come across. Any ideas?