（解説文要約）
明治時代、給水設備のない炭坑では、各家庭、飲料水の確保に苦労していました。
渇水期になると少量の水しか出ないので、水を入れて運ぶタゴが水汲み場に列をつくります。
水の節約から洗濯は坑内水で行うので、白いものも黒くなっていたと作兵衛翁は記しています。
Around 1900, miners had a hard time securing drinking water as there was no general water supply provided in some collieries.
During a drought, water was especially hard to come by,
as illustrated in this painting with the empty buckets waiting to be filled in front of the well.
They did the laundry using underground water from the pit to save water.
Sakubei explains how even white clothes turned black after being washed with pit water.