Homebrew beer and PUR water filters

 Been at this for awhile now, and havent had a batch that has turned out decent yet. In my last post, i mentioned that i was going to try a few gallon's of bottled water, but that would cut into the reason for homebrewing in the first place.
 What i am thinking, is that i may go get a water purifier of some sort, and try a batch of homebrew with that.  am looking for anyone that might have some experience using a water purifier, that may be able to leave some comments, and put me in the right direction with this idea.
 Thanks for reading, and i look forward to the comments.