85. (1) Subject to any law for the time being in force, the Corporation shall provide an adequate system of public drains in the City area and all such drains shall be constructed, maintained, kept, cleared and emptied with due regard to the health and convenience of the public. (2) Every owner of occupier or any land or building within the City may, with the previous permission of the Corporation, and subject to such terms and conditions, including the payment of fees, as the Corporation may impose, cause his drains to be emptied into public drains.(3) All private drains shall be subject to control, regulation and inspection by the Corporation, and the Corporation may, in such manner as the by-laws may provide, require the provision, alteration covering, clearing, and closing of private drains