Understanding Daily Domestic Water Demand in India (IS Code 1172)

The question asks about the total domestic daily demand for water in India as specified by the Indian Standard code IS 1172.

IS Code 1172 provides standards for the basic requirements for water supply, drainage, and sanitation.

According to IS 1172, the standard per capita water supply for domestic consumption for a community with a population of over 10,000 is generally considered to be 135 litres per head per day (l/h/d). This quantity is deemed sufficient to cover all normal domestic purposes.

Basis of Domestic Water Demand (IS 1172)

The figure of 135 l/h/d is a recommended minimum standard for domestic use. It accounts for various activities carried out in a household daily.

Breakdown of typical domestic water usage (as per general understanding related to such standards):

• Drinking and cooking
• Bathing
• Toilet flushing
• Washing clothes
• Washing utensils
• House cleaning

While the actual consumption might vary based on factors like climate, lifestyle, and availability, IS 1172 sets this baseline for planning water supply schemes in India.

The options provided are different values for this daily domestic water demand:

• 220 l/h/d
• 135 l/h/d
• 260 l/h/d
• 240 l/h/d

Based on the specifications in IS code 1172 for total domestic daily demand, the recommended value is 135 l/h/d.

Therefore, the total domestic daily demand for water in India according to IS code 1172 is 135 l/h/d.