In Beppu, besides many public hot spring bathing facilities, there are private hot spring baths. Some have their own hot spring sources in their estates, and others have hot spring water conducted by companies that have hot spring sources. A company called Nihon Chinetsu Kogyo (Japan Geothermal Industries), the largest hot spring water distribution company in Beppu, has 18 sources and has hot spring water pipes laid over many areas in this city.
The above is a photo of one of their sources.
On the road under which such pipes are laid, there are red lids like the one on the photo (right). They are hot spring water pipe bulb lids.
If you buy hot spring water from this company, which is 9,000 yen per month, you just have to open a tap, just like city water, to have a hot spring bath at home.