Allow the mixture to work its magic for at least 20 to 30 minutes. For stubborn clogs, you can leave the solution in the bowl overnight. This gives the fizzing action and the acidity of the vinegar time to dissolve the obstruction. 5. The Hot Water Flush
If you have already poured a commercial drain cleaner into the toilet, do not add vinegar and baking soda. Mixing different chemicals can create toxic fumes. unclog toilet with baking soda
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