Our hot spring, without doing things such as adjusting the temperature with water or re-heating, is poured into the bathtub as the source spring, as it is.
Even if one looks at it once, it is rare, and it is said that only approximately a few percent exist even among the tens of thousands of existing hot spring facilities.
Houheikyou no Yu, as it is the only one in Sapporo city without using a hot water storage tank, and because it is pouring the source spring directly from underground to each bathtub, for that reason, it is absolutely not touched by air. The hot water, because it absolutely does not need chlorine and so on, the spring quality does not change, and its efficacy is also high.