Water supply was cut 15–25 minutes later, and three hours of cleaning work was needed for a return to normalcy. Public Works Department director-general Selvanayagam P. Nagalingam attributed the fault to a plumber, who he claims had defaulted on following design specifications, but added that only two sub-standard endcaps were found.
The water supply was interrupted 15–25 minutes after the incident, and it took three hours of thorough cleaning to return to normal functioning. According to Public Works Department director-general Selvanayagam P. Nagalingam, the issue was caused by a plumber who deviated from the specified design, although only two defective endcaps were found.