hot salt water
Refers to heated water with salt dissolved in it, often for therapeutic or culinary use.
When you have a sore throat, gargling with hot salt water is good.
saltwater bath
A bath with salt added to the water, similar to 塩風呂. Often found at hot spring resorts or for health purposes.
See also: 塩風呂
The inn's large public bath has a saltwater bath.
Standard kanji spelling for salt water or a saltwater bath.
Alternate kanji spelling using 潮 (tide/brine); less common than 塩湯.
Compound of 塩 (salt) and 湯 (hot water). The reading しおゆ is a straightforward kun'yomi combination.