Here are a few simple solutions you can use to clean your Harvest Wall: A. Electrolyzed water – you can go from 6.8 to 6.7 pH. (If you opt to go higher, you can go with baking soda) B. Vinegar – make sure to rinse well and do not go over 100 mL per liter of water. C. Vodka Dilute Solution – this can be used if you are dealing with plant disease problems D. Denatured Eth\\aynol – you can dilute this with water E. Food-grade Hydrogen Peroxide solution