Knowing the truth is contagious, if you and I know, millions of others do as well. "It's been a long time coming, and it appears to be a long time gone" Yeah, I never flush, just use tap water the last month or so, fertilize every watering at half to quarter strength of nutes. I have flushed, however it makes an odor of wet soil, and I havent noticed an appreciable difference, other than the dirt odor. As a compromise, I do drench the pots towards the end once or twice. For me it's all about minimalism, small place, small cost, small grow.