I have been searching for info on this and not sure if I found what I wanted so I'll put it to all of you to help me. I want to get a single water filter housing and filter my tap water to 5 or 2 microns. My tap water taste is full of chlorine amd I drink ro water so why brew with it. But here's the question what do I have do with the additives after I filter the water? And what size filter is better.