1 cup baking soda
1 cup table salt
1/4 cup cream of tartar
1 cup boiling water
Cold Water.
Mix baking soda, table salt, and cream of tartar. Stir each time before using. Keep in a clean, covered jar. When ready to use, pour 1/4 cup of mixture into drain. Immediately add the 1 cup boiling water. Wait ten seconds, then flush with cold water for at least 20 seconds.
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