|1/3 bar||Fels-Naptha soap, grated fine|
|1/2 C||washing soda, not baking soda|
|6 C||hot water|
|2 gallon bucket with a lid|
- Mix Fels-Naptha soap in a saucepan with 6 C of water. Heat on low until dissolved. Stir in washing soda and borax. Continue to stir until the mixture thickens, and then remove from heat.
- Add one quart of hot water to the bucket. Pour in soap mixture, and mix until completely combined. It should be a light yellow color. Fill the rest of the bucket with hot water, and mix well.
- Set aside for 24 hours, or until mixture thickens. Use 1/4–1/2 C of mixture per load of laundry, depending on size and soiling of load.