Flooding at condominium car park at Balmoral Crescent not caused by rainfall: PUB

SINGAPORE: Flooding at a condominium car park along Balmoral Crescent was not caused by rainfall but by a faulty valve at a sprinkler storage tank, national water agency PUB said on Saturday (May 4).

"This is an isolated incident not caused by rainfall. At the time of the incident, rainfall over the area was not heavy and the nearby drains were not flowing at full capacity," PUB said in a Facebook post.

"Based on preliminary investigations, a faulty valve in the basement’s sprinkler storage tank caused water to overflow and flooded the car park."

The flooding occurred at The Twins condominium on Saturday morning. 

Amid heavy rain across Singapore, videos emerged online showing the flooded car park, with multiple cars partially submerged and people wading through the waters.

A dog was seen standing on the bonnet of a car in one video. 

Several Facebook pages that published the videos suggested that the car park became flooded after a morning of heavy rain.

PUB said it was alerted to the incident by the Singapore Civil Defence Force at 7.55am.

"PUB, together with SCDF and the building’s managing agent, deployed drainage pumps to pump out the water from the basement car park," it added.

Despite the prolonged heavy rain across Singapore, there were no occurrences of flash floods, said PUB, which had earlier issued alerts for more than 10 locations.

The bad weather also delayed flights at Changi Airport.

According to PUB, the heaviest rainfall of 107.2mm was recorded in western Singapore from 7.30am to 1.30pm on Saturday.

This is equivalent to 65 per cent of Singapore's average monthly rainfall in May.