Mayor Boris Johnson has asked Thames Water bosses to an Olympic summit.
It follows two days of chaos on the caused by a burst water main.
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The capital's theatres also generate more searches than those in any other city, according to research by Google.
Union officials are expected to meet next week to plan further stoppages if talks fail to resolve the dispute.
Natalie Sharp and Christine Bicknell appeared in court over an alleged incident at a Lidl superstore in Wallington, south London.