A sodium-led bicarbonate-chloride blend — the classic 'jūsō-sen' style softened by a chloride sub-type for a faintly salty edge. At the wellhead the water carries a yellow-brown tint with a hint of salt on the tongue and a faint H₂S note that fades within hours of sampling. Weakly alkaline and soft on the skin at 7.9 g/kg dissolved solids, it sits squarely in the Japanese 'beauty-water' family.
pH
7.80
Weakly alkaline
Source temperature
31.0°C
Low temp.
Tonicity
7.87g/kg
Hypotonic
Flow rate
109L/min
Typical
Free CO₂
12mg/kg
Low
色
Color
yellow-brown, slightly turbid
味
Taste
very faintly salty
香
Odor
very faint hydrogen sulfide, with gas evolution
Analyzed Aug 30, 2023·株式会社 エオネックス·Cert no. 第 A2302676 号
299. Fushimi Chikara-no-yu, Kyoto
Super sento with onsen water, 750-850 yen, 15 minutes from Kyoto Station by public transport + walking. Listed hours are 10:00 to 23:00 Mon-Fri and 08:00 to 23:00 Sat-Sun. They give a stamp for the 41 Super Sento of Kansai 24/25. Has a restaurant, barber shop, massage, laundry machines, and a shop. Partial bath photos from the internet, accurate.
Although close to the station, the area feels like an outskirt. In the evening the onsen was packed, all Japanese — mostly groups of young guys, no foreigners. There's a soccer field nearby.
1. Outdoor bath — smallish and fairly simple-looking, no view. But the water is interesting — clear, with limescale, and a very noticeable soapy effect. The skin on my palms got "steamed" very quickly and noticeably. Temperature 38-39.
2. Indoor zone. Very strong chlorine smell that makes it uncomfortable to stay inside.
2.1. Main bath with a bubbles zone, clear water, temperature 41.
2.2. Two standing jets.
2.3. Five sitting jets.
2.4. Three electric baths.
2.5. Event bath. Had slightly greenish water with some scent, temperature 39-40.
2.6. Steam sauna.
2.7. Sauna.
2.8. Cold bath.
The main reason to visit is the interesting water in the rotenburo and the proximity to Kyoto Station. The indoor bath is a minus for me due to the very strong chlorine smell.