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Cold Water Storage Sizing
Minimum cold water storage capacity by building/occupancy type (BS 8558 / CIPHE reproductions), with a 24-hour stagnation warning and break-tank advisory.
The Ensign ToolboxCold Water Storage SizingMinimum cold water storage capacity by building/occupancy type (BS 8558 / CIPHE reproductions), with a 24-hour stagnation warning and break-tank advisory.
Occupancy by building type
no.
135 L / person
no.
90 L / bed space
no.
200 L / bed space
no.
45 L / employee
no.
40 L / employee
no.
7 L / meal
no.
15 L / pupil
no.
20 L / pupil
no.
90 L / pupil
no.
135 L / bed space
no.
120 L / bed space
no.
135 L / bed space
no.
135 L / bed
no.
45 L / person
no.
10 L / person
Proposed / actual tank size
L
Leave blank to check the table total itself — e.g. round up to a stock tank size to check for oversizing
Check input values (whole occupancy counts ≥ 0, proposed storage > 0)