Tankers are pumping out sewage water around the clock in Hounslow to ensure a primary school, where the basement has been flooded, can remain open.
Thames Water says it has three tankers on a 24/7 rota to pump sewage out of the network and protect Cranford Primary School from flooding.
The school, in Berkeley Avenue, Cranford , had to switch its heating off on Monday (February 8) after the boiler room was flooded with some three feet of murky, foul-smelling water .
Staff said on Tuesday (February 9) afternoon that the heating had been switched back on and there were no plans to close the school, where the resources room was also inundated with water.
A Thames Water spokesman said: "We've got three tankers on a 24/7 rota to pump sewage out of the network to protect the school from flooding.Cranf
"Over pumping is being set up for Thursday (February 11) so sewage will be pumped from a potentially damaged section of the sewer pipe, through a temporary overground pipe and back into the sewer further along the network.
"Every effort is being made to make sure the school can be open as normal."
The school confirmed on Tuesday afternoon that the heating was back on but declined to give any update on the extent of the damage.
Cranford ward councillor Gurpal Virdi has said a number of roads in the area have been affected by flooded due to a damaged sewer.