How to Use Borax & Washing Soda Together
- 1). Use a cheese grater to grate a bar of pure soap into a container with lid.
- 2). Pour 1/2 cup each of borax and washing soda into the container.
- 3). Mix the soap shavings, borax and washing soda together with a spoon.
- 4). Add 1 to 2 tbsp. of the soap mixture to your washing machine with each load.
- 5). Close the container and store until you are ready to use the laundry detergent again.
Source...