Why are water pipelines often arranged in interconnected gridiron patterns?

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water supply system The primary water reservoir of São Paulo, Braz.

Water pipelines are often arranged in interconnected gridiron patterns to ensure efficient and reliable water distribution within a water supply system.

This configuration provides two primary advantages:

Service Continuity: The interconnected loops allow specific sections of pipe to be isolated for repairs without interrupting water service to the rest of the community.1
Water Quality: Unlike dead-end patterns, which can lead to water stagnation and subsequent taste or odor issues, a gridiron layout promotes constant circulation throughout the network.1