A leak on a main road in Chislehurst has been going on for more than a week.
The leak was reported in Bromley Road.
Sam Webber, who stood in the 2017 general election as the Liberal Democrat candidate for Bromley and Chislehurst, got in contact with Thames Water over Twitter last night to report the leak.
He said: "Big water leak on Bromley Road,Chislehurst BR7 close to junction with Cricket Ground Road. Can @thameswater investigate if u haven't already?"
John Hubbard said: "I reported it this morning. Has been going on for more than a week and no previous reports according to @thameswater."
A spokesman for Thames Water tweeted it had an out-of-hours investigation planned.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here