Replacement of fluid in freshwater networks

A method of replacing fluid in a fluid network comprising a plurality of fluid paths, the method comprising:

• identifying a source and a plurality of sinks in the fluid network, the source being an entry point of fluid to the fluid network and the plurality of sinks being exit points of fluid from the fluid network, wherein a first sink of the plurality of sinks has a first flow rate and a second sink of the plurality of sinks has a second flow rate less than or equal to the first flow rate;
• causing a first automatic flushing device of a plurality of automatic flushing devices to exchange fluid in a first path of the plurality of fluid paths extending between the first sink and the source;
• and
• thereafter, causing a second automatic flushing device of the plurality of automatic flushing devices to exchange fluid in a second path of the plurality of fluid paths extending between the second sink and the first path.

A fluid control system comprising:

• a plurality of automatic flushing devices positioned within a fluid network, the fluid network comprising a plurality of fluid paths, a source being an entry point of fluid to the fluid network, and a plurality of sinks being exit points of fluid from the fluid network;
• and
• a processor communicatively coupled to the plurality of automatic flushing devices and configured to perform operations comprising:
• causing a first automatic flushing device of the plurality of automatic flushing devices to exchange fluid in a first path of the plurality of fluid paths extending between a first sink of the plurality of sinks and the source, the first sink having a first flow rate;
• and
• thereafter, causing a second automatic flushing device of the plurality of automatic flushing devices to exchange fluid in a second path of the plurality of fluid paths extending between a second sink of the plurality of sinks and the first path, the second sink having a second flow rate less than or equal to the first flow rate.