We have hard water and use hemp doublers and inserts (just a few) and I don't have any stink issues. We did when I tried Charlie's Soap and Rockin Green, along with instant ammonia rashes. One wash with Tide and it cleared everything up. I know Tide isn't "eco friendly" but it's the only thing (or All Free/military) that will work with our water.
Nerdymom- I love the look of Gen-Y covers and their prints are cute. DH can't figure out snaps for some reason so that's the only thing holding me back from trying them.