5. Storage elements

Atmospheric pressure storage tanks

Intended to guarantee a certain quantity of water, the volume must be monitored (level measurement), and the useful volume optimized, which implies planning in the design :

• margins for non-drainable volumes (dead volumes, non-drainable volumes at the bottom of the reservoir);

• the volume margin corresponding to the low-level threshold: this means that the pump must be stopped to prevent cavitation;

• the volume margin corresponding to the high level threshold: which means a lack of water in the reservoir;

• a volume margin for any components added to the reserve during design or operation (e.g.: addition of a filter).

An open...