filling the bathtub with hot water
Refers to the act of running hot water into a bathtub, often as a household chore or before bathing.
Please let me know when the bathtub is filled.
毎晩、子供たちのためにお湯張りをする。
Every evening I fill the bathtub for the children.
Standard kanji-kana spelling.
Kana spelling of the second element; common in everyday writing.
Compound of お湯 (oyu, 'hot water') + 張り (hari, the noun form of 張る, 'to fill'). The prefix お- adds politeness.