I only used to do my laundry Bio myself. Very effective, very cheap, non-polluting for septic tanks. I communicate in case ... one liter of hot but not boiling water - 40 gr soap flakes or chips to clean - 1 case of soda to whiten and deodorize - 1 case against tartar white vinegar 125ml - 1dose machine. Qqs drops of essential oil to perfume if desired. In a bowl pour the water and soap. The soap tends to agglomerate I brew with a blender and I add other products. I empty all in a preferably transparent Recycling bottle to have the capacity to the eye. Personally I prepare for my machine 5 liters 10kg. Before use shake the bottle. Try it you'll be convinced.
