Parashas Metzora · Passuk 14:05
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim.
English: “Living water” — not salty water, not lukewarm water, not deceptive (intermittent) water, and not dripping water.
Mi’ut from “chayim”
Chazal restrict the water to genuine, continuously flowing spring water in its natural state.