Swacch Washing soda is an essential component in most homemade laundry detergent for powder, liquid, or single pod formulas. It is often used in commercial detergent mixtures as well to treat hard water. The sodium carbonate "softens" water helping other cleaning ingredients In the laundry room, the high alkalinity of washing soda allows it to act as a solvent in removing a wide range of stains. For home laundry,Swacch washing soda can be dissolved in water to create a presoaking solution for tough stains such as grease, blood, tea, and coffee stains. bathrooms to remove soap scum and around the house for general cleaning of hard surfaces In the garden, Swacch washing soda works well to clean outdoor furniture and decks.