Slightly off topic, but interesting, and I would appreciate any thoughts, you guys might have.
When, some 20 odd years ago, I entered the BHV horse level at the Jug junction, the way on(to the forehead), was chest deep in water. It remained like this for a few years. On another occasion, when we had decided to organise a dig to lower it, the water had vanished. Indeed exploration showed that we had gone through the county boundary and almost to the forehead. On another visit the water was back again, and on my last visit there was none.
There are workings in the four fathom limestone below parts of jug but not as I recall on this part of BHV. Nent force does not come up the BHV. Any views?