Originally Posted by Flare
Prophet (peace and blessings of Allaah be upon him) said: “My roof was opened when I was in Makkah, and Jibreel (peace be upon him) came down and opened my chest, then he washed it with Zamzam water. Then he brought a gold basin full of wisdom and faith, poured it into my chest, and closed it up again. Then he took me by the hand and ascended with me into the first heaven.”
(Reported by al-Bukhaari, 3/429).
It proves that zamzam is more blessed than the water of heaven and you want to use it for PC....?