Report from Mike Moxon
Mike M checked the water level, which was totally filling lower passage, so most of tools underwater and two tubs we left by railway under roof were also full. I moved everything that I could reach back to top of spoil heap, except the trolley, which is above Stu's seat. Mike Wise drilled holes around both grills and fitted bolts, with Jon's assistance. They only used single hole plates, so are turned out to hold grill from all 4 sides, but can be rotated to still allow access.