What it means
Distribution storage lets a system meet peak demand without pumping every gallon at the exact moment customers use it. Tank water level influences pressure, and tank turnover affects water age and residual.
What operators watch
- Tank level is tied to pressure in gravity-fed areas.
- Poor turnover can lead to low residual, warm water, or water-quality complaints.
- Inspections, vents, screens, hatches, and overflow protection help protect stored water.
Common exam traps
- Thinking tanks are only for emergency storage.
- Ignoring water age and disinfectant residual.
- Forgetting that tank elevation affects system pressure.
Field example
A tank that rarely cycles may need operational changes to improve turnover and maintain disinfectant residual.
