A growing plumbing problem

Volunteers from Sree Veera Hanuman Temple helping to clean up drains that backflowed into the streets. – Photos by LOW LAY PHON and ROHAIZAT MD DARUS.

Experts warn that used oil and fat blatantly poured into drains by restaurants can cause burst pipes, flash floods and even sinkholes

THOUSANDS of kilometres of ageing water and sewerage pipes in Kuala Lumpur are under threat from a new enemy from above ground -- fat, oil and grease or simply known to the authorities as FOG.