Just an update :)
Siphon re-started this afternoon and happily sending about 300GPM down to G floor from the old vein.
I spent some time in E3E (the connection chamber) trying to get the strainer end of the suction hose as deep as I could, and I *think* that I managed to get it to more or less the chamber floor, or close to it. A depth I reckoned to be about 10 - 12 foot.
If it stays on the chamber floor (they do tend to swim about) then the chamber will be more or less empty when we go tomorrow night and we should be able to wander along E floor, and be the first people to do so in living memory.
However, I must stress that there will still be water which could be around CWD or deeper in the tunnel, and it'll get deeper the further we walk. It's quite possible/probable that it'll meet the tunnel roof before the base of the OVI is reached. Therefore, I must say, don't expect too much. Then again, we may be pleasantly surprised. We'll all find out together.
The good news though is that with each draining, we can get the intake pipe further and further until eventually (subject to getting hold of enough pipe) we get the intake into the OVI sump and then it's Happy Days.
If it doesn't prove much to look at, we could go play on the freefall jump if any of you fancy it, but you'll need a harness.
I'll be there for 18:15 give or take.
MM
Beneath my steely exterior beats the heart of a dashing hero