Question

why should oils and fats not to thrown in drains

Answer 1

Answer:

In the case of cooking oil or fats, when these substances are poured or flushed down your sink or drain, they harden and build up on the inside of the sewer pipes and act like glue, attracting rags, hair, paper and other debris. The hardness of these blockages can also make them very difficult to clean out.

Answer 2

Answer:

Cooking oil and fats should not be thrown down the drain as it can harden and block the pipes. In an open drain, the fats clog the soil pores reducing its effectiveness in filtering water.

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