The present company is based at the South Crofty site and the old workings of South Crofty are owned by the present company.
Some of these workings have been surveyed to establish future economically viable reserves, and as the commodities market continues to improve, no doubt they will become serious contenders for development.
Meantime the spiral decline in the Tuckingmill Valley that was started when the mine was last in full production, is now being used and developed to search for reserves out toward the old Dolcoath Mine, where there are areas of 'untried' / undeveloped ground.
As for pumping...all present operations are taking place above adit and so there is no need to pump, but if / when the company decides to go deeper, then pumping will be necessary and the surrounding mines will see water levels fall.
Agricola will I'm sure, be able to fill you in much better than I can, but roughly speaking, that's the state of play at present.
"You Chinese think of everything!"
"But I''m not Chinese!"
"Then you must have forgotten something!"