Free tool · Calculator
Cold water storage turnover calculator
Oversized storage that turns over slowly lets cold water warm and stagnate. Enter the stored volume and the daily draw-off to see how long water sits before it moves.
Total capacity of the cold water storage tank(s).
litres
Water drawn off through the tank in a typical day.
litres/day
About the numbers
Daily demand is best taken from a meter or design figures and varies hugely by occupancy. Cold storage is commonly expected to turn over roughly daily — that is guidance, not a fixed rule; your risk assessment governs. Source: HSE — hot and cold water.