混合泉
Mixed Source (Sumatakyō #1 + Sumatakyō #2)Operated by · 川根本町
Mixed source
- Color
- colorless and clear
- Taste
- very faintly sweet
- Odor
- weak hydrogen sulfide
Sodium Bicarbonate-Carbonate 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 blended source piping Sumatakyō Spring #1 and #2 together at a common mixing manifold — lightly mineralized at about 636 mg/kg, classified as a simple sulfur spring (hot, 43 °C). At pH 9.07 it sits firmly in the alkaline 'beauty-water' family with a slippery feel on the skin. The wellhead carries a faint rotten-egg note of H₂S that strengthens by the time it reaches the lab, alongside a subtly sweet tasting note on the certificate's sensory row.
Sampled at mixing tank·Analyzed Jul 23, 2013·株式会社サイエンス·Cert no. 第温130601号