26
25
27
Cleaning eyes.
Filling in of drainage trenches.
Surface water channels.
Disposal of event.
Situation of septic tank.
Design,
Capacity.
59. Every cleaning eye shall be
(a) fitted with a cover, in order to make the cleaning eye airtight |
and watertight; and
(b) of such size as to allow easy entry for cleaning rods.
60. (1) All trenches in which drains or sewers have been laid shall be carefully filled in, around and above the drains or sewers, with earth which shall be carefully rammed and consolidated.
(2) No stones or other material which will not pass through a two inch ring shall be deposited in any such trench within one foot of the top of any drain or sewer.
61. (1) Channels provided for the carriage of surface water sbal be of adequate size, constructed of approved impervious material, finished off smooth and laid to a gradient of not less than one in one hundred.
(2) Suitable grilles shall be provided to prevent sand, silt and other debris from entering any public sewer, public channel, nullah w
stream course.
PART V.
Septic tanks.
62. (1) The owner of any building who is about to iustal a septic tank shall submit to the Building Authority for his approval the method by which it is intended to dispose of the effluent from the septic tank.
(2) The Building Authority shall not give his approval theroof if in his opinion, the method proposed is, or is likely to be, injurious to health,
63. No septic tank shall be situated within sixty feet of any spring. stream of water or well, the water from which is used or likely to be used for drinking or domestic purposes or for the manufacture or pre- paration of articles of food or drink for human consumption or for the cleansing of vessels used in the manufacture or preparation of mi articles.
64. Save insofar as provision is made therefor in these regulations. every septic tank shall be of such design as the Building Authority may approve.
65. (1) Every septic tank shall have such minimum capacity 25 shall be determined by the Building Authority in the manner
prescribed by paragraph (2):
Provided that no septic tank shall have a capacity of less that five hundred gallons.
(2) (a) The septic tank shall be of such capacity as to be capable of storing the quantity of soil discharged thereto during any one day.
(b) The quantity of soil discharged shall be calculated at the rate of twenty gallons thereof for each day for each person using or likely to use the soil fitments installed in the building for which the septic tank is provided.
(3) For the purposes of this regulation, the number of persons using or likely to use the soil fiuments installed in any building shall be determined by the Building Authority.
66. (1) Every septic tank shall—–
(a) have a depth of at least four feet from the invert of the inlet to
the floor of the tack;
(6) have a length not less than three times its width;
(c) be provided with adequate means of access for the inspection
and cleansing of each chamber.
(2) The sides of every septic tank shall be constructed of–
(a) brickwork in cement mortar not less than eight and a half
inches thick;
(b) concrete grade 111 not less than five inches thick; or
(c) other approved material.
(3) The foundation and floor of every septic tank shall be con- structed of concrete grade Ill not less than six inches thick.
(4) All internal faces (including the floor) of every septic tank shall be
(a) rendered in cement mortar; or
(b) faced with other approved material,
as to provide a smooth, impervious surface.
Construction.
67. The inlet to and the outlet from every septic tank shall be by Dip pipes. means of dip pipes of such depth as to avoid disturbance of the top
68. In every septic tank the space between the top of the water Ventilation. level and the underside of the cover shall be-
(a) adequately ventilated; or
(b) provided with adequate means for drawing off gases.