A temporary overland pipeline stretching nearly a kilometre along King's Inch Road is now operational, carrying flows of waste water.
This will allow the existing rising main to be upgraded.
Scottish Water Alliance Manager Robert Archer said: "Commissioning of the temporary overland bypass will come as a huge relief to customers who have been impacted significantly each time there has been a burst.
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"The poor condition of the existing pipe has left the rising main vulnerable which is why we have accelerated such a significant investment so quickly.
"With the temporary pipeline carrying the flows and the existing pipe decommissioned there will be no more bursts on that stretch."
Access pits at strategic points along the route of the existing rising main are now being excavated where lining material will be fed down and drawn through the centre of the pipe.
The technique effectively delivers a brand-new pipe within the old pipe, significantly reducing the chance of it bursting along its relined length.
It is the first phase of a more-than £10million investment which has been fast-tracked at an unprecedented pace following repeated bursts.
The first phase deals with the most burst-prone section of the sewer while plans are being developed to upgrade the upstream and downstream sections.
The work is being delivered by the public utility's alliance partner Caledonia Water Alliance (CWA) and their specialist contractors and is expected to be completed by November 2024.
