I just did my first Liver Flush and I did not see any "stones".
I fasted seven days on lemon water then had the apple juice with the Epsom Salts for the last day. Pooped water endlessly. Then I drank the olive oil/lemon juice (tastes like salad dressing, mmm!) and next morning, took more Epsom Salts with apple juice. Then I just pooped tannish floating poop and then several episodes of floating "pebbles" of the same tannish floating stuff. Pretty sure they were not "stones"--thinking that the oil mixed with lemon juice and liquids in body makes little globules out of the oil, which explains the"pebbles". And of course it floats, it's oil!