Laundry Soap One large bar of ivory soap (but you can use any soap as long as it is pure soap) 1 cup washing soda or borax 6 litres of hot tap water in a bucket Grate the soap in a pot and cover with water. Melt soap over mediaum heat but do not boil, stir occasionally to aid dissolving process. When done put it into 6 litres of hot water (tap water) in a bucket to combine. Then add the cup of washing soda and stir to dissolve. When this mix cools it will becom a white gelatious substance. After sitting some liquid will develop on it but use it with the gel it works fine. Use 1 cup per wash.