Domestic:

Domestic water requirement might be divided as:

• In-house requirement, and
• sprinkling requirement.

In-house requirement involves drinking, cooking, sanitation, house cleaning, bathing, clothes washing etc.

Sprinkling requirement involves water requirement for garden watering, lawn sprinkling, car washing etc.

Domestic consumption under normal condition in an Indian city as per National Building Code, has been taken as 135 litres per head per day (in short designated as l/h/d) or litres per capita per day (lpcd).

Amount of domestic requirement may vary depending on size and location of a city or town. Depending upon location of a place, living habits and conditions, the demand varies. In a more civilized country, per capita requirement of water is more. Same, for a big city, per capita water requirement will be more than a little town. Per capita demand for a place might be as low as 75 lpcd to as high as 500 to 600 lcpd. Factors, that affect per capita needs, are summarized below:

Climatic Condition

In warmer regions, more water is required than colder places because of often bathing, more cleaning and more needs of water for gardening etc. In hot and dry climate, consumption of drinking water is also more.