quantity of hot spring water
Used when discussing the amount or volume of water in a hot spring, often in contexts like onsen quality or supply.
This hot spring has an abundant quantity of water.
湯量が少ないと、温泉の温度が下がりやすい。
When the quantity of hot spring water is low, the temperature tends to drop easily.
Compound of 湯 (yu, 'hot water') and 量 (ryō, 'quantity'). The reading ゆりょう follows standard on'yomi for 量.