I was really expecting the air to be very bad indeed, hence we had a lamp on about a 10ft bit of rope. It was very clear indeed, which is odd. Blind shafts with "stuff that likes oxygen" usually results in people being in a bit of a muddle at the bottom. It was perfectly clear.
I'm a bit paranoid about dodgy air recently, as we had a bit of an "exciting time" a few weeks ago. I can't be putting myself through that again for a while.
I'm up for slinging some stuff. The SRT practice will come in handy.
I was wondering, looking at the chains, whether it would be possible to strap everything together and "tip" the headgear so it can be repaired and then tip it the other way. This would involve gravity less!
The question is, how easy would it be to pump it out? The pipes are small bore, which suggests that it wasn't wet. You could rig up a big diesel generator running on used engine oil from local garages/scrapyards and then get the mother of all pumps. I'm sure with your talent of getting people mobilised, it's not beyond your capabilities.
If it was my project, it would be rude not to attempt pumping it. Obviously, the yoghurt weavers would have a fit!