OK. I have a new keyboard. A digging and etc trip last night. There will be lots to do next time. We are now clearing all the dumped bags, rocks etc from the " chamber " half way along The Hole In The Wall. It occurred to me that much will look the same underground in a thousand years time so best to leave it tidy. The shaft water level has flatlined the last two months 2m above the previous lowest point recorded even though the shaft and tunnels are very dry. An odd dig for me looking for hypothetical caverns which could be entirely in the opposite direction or 50m along from where we are now. The whole of THITW is man made.