Sorry if this has already been discussed, but I'm pretty new to using forums. As a Chicago brewer I was wondering what everyone uses for water around here to get the best taste out of their beers. For my first two batches I used local Chicago tap water, but decided to use bottled spring water on my third batch. As I am about to start my fourth brew this coming weekend, and I haven't had a chance to try my last batch as it's dry hopping, I was wondering if I really need to spring for spring water (pun intended) or if the local tap water is good enough around here? Any advice to avoid off flavors and get the most out of my brew would be much appreciated.