What Type of water do you give your animals?

I give all of my animals water from the reverse osmosis system in our house. We have well water, but I won't drink that water, so neither do my pets! The exception is my Tonkinese cat. He loves drinking straight from my bathroom faucet, which does not have the filtered water. I try to keep this down to a minimum, but he is a very stubborn, willful cat! I regret ever allowing him to drink from the faucet, but it was cute at first. The faucet is a dolphin and the water comes out of its mouth. I wish I knew how to put photos here of my Tonk drinking from it. Anyway, I'd like to break him of the habit since I don't think the water is any good for him, plus it has that salt from the softener in it.