Mixing ZamZam with normal water
Q: If a little Zamzam was pored into normal water (and vice versa) will all the water become Zamzam? If so will the water continue being considered as Zamzam even if there are only a few drops in the container before normal water is added?
A: No, though it will have the barkat of Zamzam.
And Allah Ta’ala (الله تعالى) knows best.