I say, and with God's success: The washer of real impurity: it is the water used to remove real impurity from clothing, the body, or a place, and its ruling is that it is impure, whether it is separated as changed or unchanged, and whether it is separated from the place while it is pure or impure; because the ruling of the washer is the ruling of the place before the water was applied to it. Refer to: Sharh al-Waqaya p. 99, Al-Hidaya 1: 20, Noor al-Iidah p. 23, and Al-Sayah 1: 396-397, and God knows best.