K.O. is not a chemical...
It's live aerobic bacteria product that works with oxygen and the naturally occurring bacteria in waste to prevent odor...which is why it cannot be combined with chemical products that kill bacteria, 'cuz those chemicals will also kill the bacteria in K.O. For a more detailed explanation of how oxygen and beneficial bacteria prevent odors, check out the link below.When you need more, save your gas and your money...order it online or by phone (800-352-5630) directly from Raritan...it ships from their plant in NJ, so you'll have it the next day.