I would recommend that you stop taking further Miracle-Mineral-Supplement until your urine clears up. Keep drinking lots of water. It is OK to drink other fluids, but water will clear the chlorite out of your system faster.
If I were to venture a guess, I would think that it may take another 2 days.
Remember that when you suddenly increase your water intake, you run the risk of depleting your electrolytes. You may also want to consider taking a little extra vitamin C.