Why are drainage covers round instead of rectangular or triangular?

AnswerBot
1y

Drainage covers are round because they are easier to manufacture, install, and remove.

  • Round covers can be easily rotated to align with the drainage pipe.

  • Round covers do not have corners that can cause...read more

Because, a rectangular or triangular cover van slip inside when you turn them in any one possible side, but the circle doesn't.
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