混合泉
Sumatakyo Onsen Blended SourceOperated by · 川根本町 観光交流課
Mixed source
- Color
- almost colorless and transparent
- Taste
- faintly of hydrogen sulfide
- Odor
- faint hydrogen sulfide, with gas evolution
Sodium Bicarbonate spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
- Skin conditionsatopic skin, eczema
- Circulationtired legs
- Aches & jointsstiff shoulders
- Sensitive-skin cautionbroken or dry skin
A simple sulfur spring on the alkaline side (pH 9.1), carrying the faint rotten-egg note of hydrogen sulfide with visible gas evolution at the source. The alkalinity gives it the slippery, beauty-water feel of the classic Japanese 'bijin-no-yu' family, soft on the skin. It is served as a blended source pooled at a mixing manifold, and with dissolved solids of just 0.714 g/kg it stays lightly mineralized and gentle on the body.
Sampled at mixing tank·Analyzed Oct 11, 2023·一般財団法人 静岡県生活科学検査センター·Cert no. 第 M23017 号