Onsen OniOnsen Oni

Kanshichi-yu

勘七湯かんななゆ

Public Bathhouse
Naruko Onsen-kyoNaruko Onsen
Tohoku·Miyagi
0229-83-3038kansiti.com

Day Use

Yes

Water treatment

from Article 18 disclosure
  • Added water
    Yes
  • Reheated
    No
  • Recirculated
    No
  • Disinfected
    No
  • Bath additives
    No

勘七源泉

Kanshichi Spring
Sampled at wellhead
曹
Bicarbonate
Classification

Sodium Bicarbonate spring

A sodium-led bicarbonate spring — the classic jūsō-sen (soda-water) style, soft on the skin and squarely in the Japanese beauty-water family. A generous 207.5 mg/kg of metasilicic acid leaves the kind of silica film that makes skin feel noticeably smoother. The well emerges at a scalding 94 °C, among Japan's hottest natural sources, yet reaches the bath undiluted at 100% source strength as free-flow with no recirculation.

Source temperature
94.1°C
Hot
Tonicity
1.00g/kg
Hypotonic
Free CO₂
110mg/kg
Low
Free H₂S
0.10mg/kg
Low
Color
colorless and transparent
Highlights
  • High silica
  • Top-decile hot

Analyzed Dec 6, 2019·公益社団法人 宮城県公害衛生検査センター·Cert no. 公衛検第1173号

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SM
Sergey M
1 year ago

228. Kanshichi-yu, Naruko Onsen Visited on higaeri for 2 stickers on the local tegate (listed from 08:00 to 20:00). Main large indoor bath. Water is clear, there was black lime deposit that I initially mistook for dirt, since there were also hairs in the bath. Water temperature 40, breathing is tolerable. The second section of the bath had no water. Small indoor bath with a separate changing room. Water is clear. There was also black lime here, but less. No hair in this bath. Water temperature 40, breathing is tolerable. A questionable place, more likely a skip.