Hong Kong Regulations

BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 23

Shape of manhole covers

(1) The cover of every manhole, in a private street, cul-de-sac, access road,
pedestrian way or service lane, provided for a drain or sewer provided for the
carriage of foul water shall be rectangular on plan.

(2) The cover of every such manhole provided for a drain or sewer provided for
the carriage of surface water shall be rounded on plan.

(3) For the purposes of this regulation, the expressions "foul
water" (髒水) and " surface water" (地面水) shall have the meaning
assigned to them by regulation 2 of the
Building (Standards of Sanitary Fitments, 
Plumbing, Drainage Works and Latrines) Regulations ( Cap 123 sub. leg.).

"foul water" (髒水)

"surface water" (地面水)