Cold Water Storage Capacity

Required cold water storage capacity - commonly used fixtures and types of buildings

The table below indicates 24 hours storage requirements related to commonly used fittings.

Type of Fixture Storage Capacity per Fitting
liters gal
Basin 90 23
Bath 900 207
Garden watering tap 180 47
Shower 140 - 230 36 - 60
Sink 90 - 180 23 - 47
Urinal 110 29
WC 180 47

The table below indicates 24 hours storage requirements related to different types of buildings.

Type of Building Storage per Person
liters gal
Hostels 90 23
Hotels 135 35
Offices with canteens 45 12
Offices without canteens 40 10
Restaurants, per meal 7 2
Boarding School 90 23
  • check CIBSE Guide G (2004) Public Health Engineering

water storage in a domestic dwelling should have a capacity of at least 200 - 300 liters.

Related Topics

  • Water Systems - Hot and cold water service systems - design properties, capacities, sizing and more

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