Water and energy for everyone · Volume two
T12 A carefully prepared reserve
Look, connect the ideas and tell the story
- Tank
- Checks
- Reserve
Words and symbols to help us tell the story. Sizes and distances are not to scale.
Adults check a closed tank. The reserve can help when there is a problem with the service. The water must remain fit for its use. A reserve for homes has one job; a power station’s safety reserve has another.
Why do we check the reserve too?
For the accompanying adult
The design must provide for storage, quality and continuity. The reserve for domestic and public uses is separate from safety cooling systems; a reserve shown in a picture does not prove sufficiency or reliability in every emergency.
Sources for further reading F8 F9 · Final section of the book