Manhole
A manhole is the top opening to a sewer system. A person can enter it to maintain the sewer. If it is not in use, it is covered with a cap to avoid injuries.
A manhole is the top opening to a sewer system. A person can enter it to maintain the sewer. If it is not in use, it is covered with a cap to avoid injuries.
A manhole is the top opening to a sewer system. A person can enter it to maintain the sewer. If it is not in use, it is covered with a cap to avoid injuries.
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