Isn't there a recipe on the back of the Castor Oil container?
If you don't have the oil yet, look on line and you can find it. In a gallon sprayer it is like a cup of oil, dish soap into the gallon sprayer. From experience you put the water in first, then the oil and last the soap.
If you put the soap in too early it's bubbles bubbles bubbles bubbles bubbles bubbles!!!!
