No-one wrote:
Hello Stuart,

"Stuart Noble" wrote in message
...
How many days worth of water?

According to Thames Water...

"Honor Oak Reservoir is Europe's largest underground reservoir,
beneath Peckham Golf Course. It holds enough water for 1 million
people."

i.e. quite a lot :-)

For how many days? Population of London now put at over 7 million.

regards


What about, "for a considerable period of time"?