Section 4C in The Special Rules for the Mulit-storeyed and Public Buildings, 1974
4C. Separation of bath and wash basin water and reuse.
- Notwithstanding anything contained in these rules, every multi-storeyed and public building shall be provided with separate pipelines, one for collecting waste water from bath and wash basins and the other for connecting the toilets. The waste water from the toilets alone shall be connected to the street sewer. Each building shall have a separate downward pipeline to collect waste water from bath and wash basins and the collected waste water shall be treated adequately by organic or mechanical recycling and taken to a sump for onward pumping to the exclusive overhead tank or to a separate compartment or overhead tank for exclusive use of toilet flushing throughout cisterns. The excess waste water not reused for toilet flushing, shall be suitably connected to the rain water recharge structures for ground water recharge.Explanation. - For the purposes of these rules in regard to recycling systems are concerned, any other modification or additional structures, alternative designs furnished by the applicant shall be considered for approval, if it conforms to recycling concept to the satisfaction of the competent authority for building plan approval.
