The city will face a 30 per cent water cut on Friday due to two more ruptures on the Tansa main water pipe on Thursday.
The rupture happened due to the ongoing repair work on the Tansa main.
Two 72-inch pipelines were ruptured — one at Mulund and the other at Kapurbawdi in Thane — resulting in wastage of 3 million litres of water and leading to an increase in the water cuts by 15 per cent.
The civic body has decide to impose an additional 15 per cent after the ruptures. This means the city, already reeling under 15 per cent water, will face 30 per cent water cuts on Friday.
Civic officials said that repair work on both the pipelines will take between 24 to 36 hours.
The western suburbs will be the worse hit due to the ruptures as Tansa is a major supplier to that area.
Already, the area between Goregaon to Dahisar will get no water till Friday afternoon due to the ongoing repair work on the Malad tunnel.
Vacuum created in the pipeline leading during the repair work lead to pressure within the 100-year-old pipes, causing them to rupture.
“Any minute change in the pressure and quantity has a cascading effect leading to ruptures in more than one section of the line,” said Anil Diggikar, additional municipal commissioner.
The pipe burst at Mulund led to major flooding in the area near the ESIC Hospital blocking traffic on the arterial LBS Road. Residents had to wade through knee-length water as the area was inundated with water and pedestrians used ropes to cross the roads to avoid being carried away.
The leaked water also entered a few residential buildings such as Sudama Sadan, Bilwa Kunj, chawls and shops along the road. Two petrol pumps had to be closed down as they were submerged in water.
“The water came with such force that the compound wall collapsed and entered the ground floor flats of our building,” said Sudama Sadan resident Deepesh Gohil.
The pipeline burst at Kapurbawdi didn’t lead to water logging as the air valves were opened, which drained the water out from the pipeline.
“We started the repair work at 11 am by shutting certain valves in the pipelines. This led to rise in water pressure inside the pipeline and it burst at around 12.10 pm.”