19. Earth Closets
An earth closet shall comply with the following requirements—
(a) its only direct entrance shall be from the external air;
(b) it shall not be less than 10 feet from any part of any dwelling house and 40 feet from any well, spring or stream of water used or likely to be used by man for drinking or domestic purposes or for the manufacture or for the preparation of articles of food or drink for human consumption or for the cleansing of vessels with a view to the preparation for sale of such articles and otherwise in such a position as not to render any such water liable to pollution;
(c) it shall be provided with a sufficient opening for lighting and ventilation as near the top as practicable and communicating directly with the external air;
(d) the floor shall be of non-absorbent material which shall in every part including the part beneath the seat, be not less than 3 inches above the surface of the adjoining ground and have a fall or inclination towards the entrance door of not less than one-half of an inch to the foot;
(e) the receptacle shall be—
(i) of a capacity not exceeding 2 cubic feet or such less capacity as may be sufficient to contain all faecal matter, earth or other material which may accumulate therein during a period of not more than one week,
(ii) of non-absorbent material so constructed and placed that its contents shall not escape by leakage or otherwise or be exposed to rainfall or to drainage of any waste water or liquid refuse and no part of the receptacle shall communicate with any drain.
(f) it shall be provided with a suitable vessel of adequate capacity for dry earth or other suitable deodorising material so constructed and placed as to admit of ready access for depositing therein the necessary supply of the earth or other material and it shall be provided with sufficient means for applying the earth or other material to the faecal matter in the receptacle;
(g) the containing walls of the space beneath the seat except such opening as may be necessary for affording access to the space shall be impervious to moisture;
(h) the seat, the aperture in the seat, and the space beneath the seat, shall be of such dimensions that the receptacle can be so placed and fitted beneath the seat as to prevent the deposit of faecal matter elsewhere than in the receptacle. The space beneath the seat shall be adequately protected against the ingress of flies or mosquitoes;
(i) adequate access for cleansing the space beneath the seat and for removing therefrom or placing and fitting therein the receptacle shall be provided by means of the adjustment of or removal of the seat or by some other suitable means.