I wasn't sure where would be best to post this question, so I guessed on Chemistry 101.
Is pool water safe to drink in emergencies?
We are putting together a neighborhood emergency preparedness council and this question was posed. We live in the Bay Area in California and there is a very real possibility of a major earthquake which would necessitate being self-sufficient for several weeks at least. At least, that is the lesson we came away with after watching Katrina several years ago.
The plan would be to only utilize pool water after other sources of water were exhasuted: bottled water, hot water tank, toilet tank, etc.
There are many sources on the Internet and even local county health agencies which advise that pool water is not safe to drink in emergencies. But I'm not too sure about this. Assuming that one has the proper amount of FC, there would be no worries about ingesting bacteria or algae. And pool water would seem to have the advantage of not having to be treated with chlorine, like water from streams or ponds would have to be.
The only chemical in pool water that I am not sure about would be CYA, but reading the MSDA's lead me to conclude that CYA is not particularly hazardous as long as one did not consume vast amounts of CYA for an entire lifetime.
Of course, in a true acute emergency where somebody was about to literally die of thirst, one would not hesitate to administer any sort of moisture, no matter how disgusting.