the-ordinances-of-the-legislative-counci-1890v4 — Page 398

ORDINANCE No. 24 OF 1887. 2215


Public Health.


33. Any person who may have laid any new drain or constructed new drainage Covering up
drains.
works connected therewith shall not cover up such drain or works until the same shall
have been previously inspected and passed by the Board, and such person shall give
three clear days ' written notice to the Board that such drain or works are ready for
inspection, and such notice shall be delivered at the office of the Board in a form of
which printed blank copies may be obtained gratis in English and Chinese on application
at the office of the Board, or in the case of villages at any Village Police Station,
between the hours of 10 A.M. and 4 P.M.

34. Before any drain is covered in, it shall be inspected and tested to ascertain Inspection of
drains.
whether it is water or air-tight ; and no drain that fails in this respect shall be passed.
After inspection, the earth shall be carefully filled in, above and around the drain ;
and thoroughly rammed and consolidated. For a depth of at least six inches, above
the summit of the sockets of the pipe, selected material, free from stones larger than
will pass through a 2″ ring, shall be used in filling in the trench.

35. The floors of cook-houses, stables, cow- sheds and the like, where practicable Floors of cook
houses, &e.
shall be elevated above the ground outside the dwelling, and be provided with surface
channels, passing out through the wall, and delivering above a trapped-gulley, outside .
When new drains are being laid and where the floor is at the level of the ground
outside, the surface- channel of the cook-house, shall be connected to a trap, outside
the house, by a straight open pipe, terminating above the water- level of the trap,
which shall be accessible and in free communication with the air.

36. The floors of cook-houses, latrines, privies, back-yards shall be paved with Floors of cook
houses, &c.
some impervious and durable material, such as granite setts, or vitrified bricks, laid
on a bed of good concrete not less than four inches thick, and pointed with good
mortar, or with good concrete laid in a bed not less than six inches thick and rendered
with cement, and shall have a fall from the walls to the outlet of at least a inch to
the foot.
37. All surfaces of back-yards and paved areas of premises wherever practicable Fall of yards, &c.
shall have a fall, from the walls of the building towards the trap or inlet of the drain,
at the rate of not less than au inch to 1 foot, and such inlet shall be placed as far
from the walls as practicable.
38. Open surfaces such as back-yards, court -yards or other spaces, on which Openings into
drains in yards,
slops are thrown, or from which foul waters flow, shall be provided with trapped con &e.

nections to the house-drains, for the removal of such waters, as well as some of the
rain-water. But such surfaces shall be properly paved, in the inanner prescribed for
back-yards and cook-houses, so that no sand or silt may be washed into the drains
from them.
39. Wherever an outlet is available, surface channels shall be provided to carry Surface
channels.
excessive rain-fall from premises and these channels shall be properly connected with
the storm -water channel, in the street. Traps not less than 4 inches in diameter in
connection with the house-drain shall be placed in this surface- channel, which will
-carry off slops or sewage, as well as some rain-fall.