Simon & Rob
Went through and inspected the Pool Chamber Sump area, to see what the recent floods had done. Answer was not too much. Obvious way to progress is now to board out in the base of Pool Chamber and to start proper digging the trench. Not sure if it's worth it at the moment...
THen went and had a good dig in the Chocolate Icecream dig, and boy that does look good! The high water levels meant the flow through the hose was enough to take most material away, just mostly removing the large rocks to the side. Some big boulders now may start to slow progress, and some more shoring is due.