I use it all the time, every time. I've got nasty iron well water at my house. And hard water isn't necessarily a bad thing, depending in the style of beer you want to brew. If you want to dive into the world of water chemistry, get a water report from Ward Labs.
On Wednesday, July 31, 2013, Erik Nelson wrote:
I am wondering has anyone used the reverse osmosis water from the grocery stores? I am wondering on the quality. My area has so hard water so I am weighing the options to soften it instead of my hard water.ThanksErik Nelson