Next on low heat continually stir the soap until it is all dissolved. Then pour it into a 5 gallon bucket.
To the bucket add one cup of Arm & Hammer Super Washing Soda and one cup of 20 Mule Team Borax. I found both of these at my local grocery store but in the laundry soap isle.
Next fill the bucket with warm water and stir the mixture until the detergents have all dissolved.
Then let it set for 24 hours.