Water was what Harry was worried about. More specifically the effectiveness of it at his secret Indium mine site. Harry had something going wrong with the collection of Indium from the falls water, which was bad. His whole process was based on collecting the metal after heavy rains in a remote area.
Harry had come up with an autonomous process which extracted the rare metal directly from a stream of water flowing over the zinc/indium ore bearing rocks. Still unsure as to why there would be an unusually high concentration of Indium, Harry was not bothered. All he had to do was make sure the tanks collected the water at the right time and flow rate and then run a solar powered concentration process on site remotely. Every year he would go up the mountain and collect, just in time for Christmas.
This year things were not working out. The collection timing was wrong, all the equipment was working, but the collections were just not making it.
