How much water will I require?

To ensure a sufficient temporary water supply, the table below taken from BS 8551:2015 provides the typical flow demand in litres per day of a number of common temporary applications.

This data is to be used to provide an estimate of the water you will require based on the intended use and the quantity of people it is intended to supply.

Domestic Litres
Standard Residential 200 Per person/day
Mobile Home (Caravan type with full services) 180 Per person/day
Industrial
Office/Factory (Without Canteen) 50 Per person/day
Office/Factory (With Canteen) 100 Per person/day
Open Industrial Site, E.g. Construction, Quarry, Without Canteen 60 Per person/day
Hotels
Holiday Camp Chalet 227 Per chalet/day
Amenity
Toilet Block 10 Per person/visit
Shower Per Use 40 Per person/visit
Health Club/Sports Centre 50 Per person/visit
Tent only Sites 70 Per person/day
Caravan Sites (touring or static not serviced) 100 Per person/day
Caravan (static serviced) 180 Per person/day
Festival Sites (day visitors) limited concessions (age range 16-30) 20 Per person/day
Festival sites (camping) concessions 35-50 Per person/day
Residential Care Homes
Residential old people/nursing 350 Per person/day

Choice of Tank size relative to population served

Number of people Tank size or range (Litres) Replenishment cycle (Days)
1 500 7
2 to 4 500 to 1000 7
5 to 10 1000 to 5000 5 to 7
11 to 30 5000 to 10,000 5 to 7