Thread: Why manholes are round?
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Old Monday, February 15, 2010
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@fawadkhan

That was my point if any other shape can fall in he hole then why can't the round ones and if round ones cannot fall them how come others will fall in the hole coz the frame for the cover to rest upon is made according to it's shape

I have three main holes though smaller in size in my own house for drainage purpose and they are rectangular in shape and they have never fallen in side.
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