10. Every cook-house of a dwelling or tenement-house, shall be provided on every floor with a suitably dished and perforated slop-stone, and with a down-pipe, securely fixed, trapped, disconnected, and ventilated to the satisfaction of the Board.
11. All works connected with the construction, disconnection, trapping, and ventilating of house-drains, shall be carried out at the cost and charges of the owner of the house, by the Board or by persons approved of by the Board under the supervision of the latter.
12. The Board may, by means of a written Notice, require the owners of existing buildings, the drains of which may be in a defective and insanitary condition, to construct within a reasonable time to be determined by the said Board, new house-drains, and to make such other improvements in the existing defective drainage of such building, as in the opinion of the Board may be necessary in order to bring such existing buildings within the provisions of this Ordinance.
13. If it appears to the Board that a group of contiguous tenements may be drained more advantageously in combination than separately, the Board may order that such group be drained upon some combined plan to be approved by it, and the expenses shall be apportioned by the Board between the different owners of such group of contiguous tenements.
14. If any building be without a sufficient drain, and if a public sewer of sufficient size be within one hundred feet of the premises or outermost boundaries of the lot on which such building is situated, and if such public sewer be on a lower level, it shall be lawful for the Board to require the owner of such building to connect with such public sewer by means of a proper drain of sound hard pipes of glazed stoneware properly jointed in cement mortar and adequately trapped and ventilated, to the satisfaction of the Board.
15. Whenever the Board shall have reason to believe that the drains of any building are defective and in a condition prejudicial to the health of the occupiers of such building, or to the neighbours thereof, it shall be lawful for the Board to order an Inspecting Officer to enter the premises and to inspect such drains, and if requisite for the purposes of such inspection, such Officer shall cause the ground to be opened in any place or places he may deem fit, doing as little damage as may be, and should such drains be found in a satisfactory condition, they shall be reinstated and made good by the Board at the public expense, but should such drains prove in the opinion of the Board defective, it shall cause them to be properly reconstructed in accordance with the provisions of Section 12 of these Bye-laws.
In the Villages and Rural Districts of Hongkong and Kowloon.
16. Every owner of a new building in the villages and Rural Districts of Hongkong and Kowloon shall construct the lowest story of such building at such sufficiently high level as will allow of the construction of a drain, and of the provision of the requisite communication with any public sewer into which such drain may lawfully empty or with any other means of drainage with which such drain may lawfully communicate.
17. Wherever feasible, every house-drain in the villages and Rural Districts of Hongkong and Kowloon shall hereafter be an open drain consisting of a semi-circular channel of glazed stoneware set in lime concrete and jointed in cement mortar, or of good lime concrete rendered smoothly in good Portland cement.
18. In isolated places not connected with any public drainage system, every such open drain shall lead and empty into a covered sump or cesspit built of brick or lime concrete rendered smoothly in good Portland cement mortar in such manner as to be water-tight.
19. No premises within the City of Victoria or the villages of Hongkong and Kowloon, shall be so excavated as shall admit of the formation on the surface thereof, of pools of stagnant or other foul waters, and it shall be lawful for the Board to call upon the owner of any premises whereon such pools may exist, to fill up the same with earth to the level of the surrounding ground, or to drain off such pools by means of surface-drains into any channel with which such surface-drains may lawfully communicate.
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