We bubble regular water or the warm 0.5m drop. We collect the gases that are produced. We get helium and oxygen. We also get at heat, light and X-rays.
We use a car the refrigeration cycle to cool the gases down. We get liquid helium and oxygen. LOX has a high commercial value. Liquid helium is worth more than its weight in gold.
We produce helium from regular water. It will never run out. Gold mining - a much cheaper business.