Question

how can we create washing powder with the hel of washing soda

Answer 1

Smear it on the area; let dry and then rinse. A regular solution of washing sodaand warm water will brighten venetian blinds,
and help repel dust. Dip a cloth in a solution of
½ cup washing soda dissolved in a gallon of warm water and wipe blinds. Or fill your bathtub with warm water and add washing soda.
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