The Water Authority of Fiji says repair works on the damaged 600mm main line along Princes Road will be delayed after their teams identified that the fault is located next to a thrust block.
This means that instead of repairing with clamps or welding, they will now have to cut and replace the entire damaged section.
WAF repair teams on site have managed to completely dewater the trunk main and have accessed the damaged trunk main.
The bore that ruptured the main is over 100mm in size.
Safety precautions are being taken not to damage other utility services, especially the EFL Power Line, which poses a safety risk to all on-site.
WAF Chief Operating Officer Seru Soderberg has apologised for the inconvenience caused and said they are working diligently to resolve this issue.
He said 40 water tankers are engaged to provide relief to the affected areas.
Soderberg said there are some delays because of the volume of requests they are receiving, but has assured those people living in affected areas that the water trucks will service them as quickly as possible under this situation.
No time frame has been given as to when the repair works are expected to be completed.