Question

why should oil and fatty foods should
not be disposed in drains?​

Answer 1

Answer:

Fats, oils and grease cause major problems to the sewerage system. When they are discharged down kitchen sinks or foul drains they cause sewer blockages and when discharged down rainwater pipes and gullies they cause pollution in local water courses.

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Answer 2

Answer:

Oils and fats should not be released in drains because they harden the soil in the pipes and block them. Fats get clogged in holes of the soil in the drain and block it. It does not allow the water to flow.