paul
Moderator
Forgot to mention it earlier... I was on a trip down Hillocks / Knotlow via Whalf Pipe Climbing Shaft the weekend before last (17th July) and last in a group of 3 heading through Meccano Passage.
Keith, who was in front, dropped down a hole about 1m / 3 ft deep about a third of the way along and suddenly felt his heart rate dramatically increase. His sister, Karen, a few metres behind Keith and a few metres ahead of me could hear his heartbeat!
We had been a little breathless getting to the entrance to Mecanno but after a short wait all seemed well so we continued.
As soon as Keith felt this he wisely immediately turned back it was his first time in Mecanno and I had warned him to watch out for anything unusual due to the preceding feelings of breathlessness) and we rapidly exited Mecanno. The air back in the main part of the system seemed a lot fresher but that may have been psychological. We continue poking about in the rest of Whalf Pipe / Hillocks without any problem.
No sign of any smells, nobody else in any of the system and only Whalf Pipe Climbing Shaft open - but other shaft lids are grilles anyway. There were several very heavy showers on our way to Monyash so I imagine the Waterfall in Waterfall Chamber in Knowlow (connects with other end of Mecanno Passage) was flowing quite well which may have affected CO2 levels?
Keith, who was in front, dropped down a hole about 1m / 3 ft deep about a third of the way along and suddenly felt his heart rate dramatically increase. His sister, Karen, a few metres behind Keith and a few metres ahead of me could hear his heartbeat!
We had been a little breathless getting to the entrance to Mecanno but after a short wait all seemed well so we continued.
As soon as Keith felt this he wisely immediately turned back it was his first time in Mecanno and I had warned him to watch out for anything unusual due to the preceding feelings of breathlessness) and we rapidly exited Mecanno. The air back in the main part of the system seemed a lot fresher but that may have been psychological. We continue poking about in the rest of Whalf Pipe / Hillocks without any problem.
No sign of any smells, nobody else in any of the system and only Whalf Pipe Climbing Shaft open - but other shaft lids are grilles anyway. There were several very heavy showers on our way to Monyash so I imagine the Waterfall in Waterfall Chamber in Knowlow (connects with other end of Mecanno Passage) was flowing quite well which may have affected CO2 levels?
