In a 5 gallon bucket, pour 4.5 gallons of really hot tap water in it. I use about 1/2 boiling water and 1/2 hot tap water.
Stir in all ingredients until they are completely dissolved. Note: If the ingredients are not dissolving all the way, then the water is not hot enough.
Cover the container and let it sit overnight.
The next day shake or stir until smooth.
Pour into 5 separate, glass gallon jugs or containers.