I'm doing #8 tonite. I found that chilling the water made the ES taste much worse than taking it at room temp. Try that. If needed, have a tablespoon of juice ready to swish- then spit it out. #6 eliminated hundreds of peppercorn size stones, #7 only a few, but 2 days later something very dark floated that was oblong and maybe 1 1/2". I should have taken it out.