It looks like you are using either tap water or maybe salt in your water due to the brown color. Try Distilled water and lye, or add baking soda till you get around 14 PH and then add Vinegar to lower to 4 PH. I use the second method with great results and now have at least 20 hours on the same water with no scum or brown water. If you need more electrolyte keep increasing the soda/vinegar or add more lye which ever method you used but always use distilled water.