(5)Efficient drains shall be provided for the effluents from the point of origin to the place of treatment and the place of disposal.The drains shall be of such capacity as to be adequate for draining out the entire effluents without allowing them to over-flow and shall be constructed of masonry, concrete, or bricks and cement and shall be covered unless iron or concrete pipes are used for carrying the effluents:Provided that the Chief Inspector may, by an order in writing, relax the requirements of this sub-rule to such extent and subject to such conditions as he may specify, if he is satisfied that compliance with the provision thereof is not necessary or practicable.
