Im wondering whats best to use. They say to use water with low flouride content. I live in windsor, ontario and the water here is polluted. I dont trust the tap water. I buy distilled bottle water from Culligans. But they also sell ionized water. Which one is best for baby? Also, these bottled waters come in plastic which contain that BPA so now im worried about that. I know the water is at room temperature but how do i know that when these bottles are shipped they are sitting in the hot sun or previous people who recycle these jugs leave them sitting out side in the sun? Man talk about being worried. Any suggestions? thanks