This video will show you the steps it takes to clean out a 275 gallon IBC water tote. The first step is to rinse the chemicals out of the tank with your hose. Then you close the empty valve and put 56oz of Dawn dish detergent and refill tank until there are no more soap suds coming from the lid on top. Next, you empty tank out again and then leave empty 2" valve open and rinse suds from the tank. The next step is to close the empty valve and pour 2 pounds of baking soda into the tank and then refill with water, making sure the baking soda gets dissolved all the way in the tank. Once the tank is full again you empty the tank one more time and it will be clean. I don't recommend how you use your tank, just what my family used it for.