A Sanitation (or Shit) Flow Diagram presents a clear picture of how excreta flows are managed within the city. The diagram clearly depicts how excreta flows from user interface to the final disposal. It has the following stages:
Containment
The city of Katihar has an area of 33.46 sqkm that includes out growth. The core of the city is densely populated. Whereas the households in peripheral area of the city have rural settlements which are primarily dependent on agriculture and are considerably lower income settlements. As per primary survey conducted in November 2016, the city has three different types of containment systems that vary on the basis of income of the households.
➣ Septic tank with an outlet connected to open drain or soak pit is the most common type of containment system within the central wards of the city. According to key informant interview (KII) with the municipal corporation’s sanitary inspector the percentage of effluent discharged into open drain and soak pit is 50% each
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