How do you clear a major grease and fat clog out of a kitchen sink pipe layout?

Question

My kitchen drain pipe is completely blocked because someone poured warm cooking grease down the sink, which hardened inside. How do you melt it?

PlumbingPro · Answer

Pour half a cup of baking soda followed by half a cup of white vinegar down the drain, seal it for 10 minutes, then flush the lines with a kettle of boiling water to liquefy fat.

How do you clear a major grease and fat clog out of a kitchen sink pipe layout?

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