Yes, though I change water bowls two to three times a day anyway.

Another point I'd like to bring up: If you're going to add vinegar to their water bowls, please make sure to observe them and make sure that the taste isn't causing them to not drink! Birds can dehydrate rather quickly.

what makes Bragg a good apple cider vinegar is it is raw and unfiltered. I guess thats where the goodies are that allow it help the immune system. I went over this with my vet last check up and 3 cap fulls of the quart sized ACV to a liter of water was the recommended dosage. The vet was more scientific then that and gave me a syringe which I immediately changed to "cap fulls"