1, pour some baking soda on it first.
2. Then pour the white vinegar in the blocked place.
It can be seen that white vinegar will produce many bubbles when poured in.
4. Then let it stand for 2 minutes to allow baking soda and white vinegar to fully react.
5, then add boiling water, these raw materials have a strong cleaning and decontamination effect.
6. This will clear it.
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