Tap. I don't think the water is great here. Most places it isn't. But I've seen maverick pee in a puddle and then drink from it so I'm not really that worried about it.
Riot drinks tap water as of right now, but there has been a few beaches around here closed due to high levels of EColi, so he will be switching to big bottled water this week!
Tap water, although given half the chance she will drink swimming pool water or even sea water - crazy girl. We only drink bottled but water straight from the tap seems fine for her.
My Mother-in-law only gives her dogs Filtered or Bottled water!
The way i see it is if Tap water is good enough for me then it's good enough for Bailey