At Least My Side Of The Boundary Is Operating On A Closed Loop.

https://news.sky.com/story/uk-weather-water-shortfall-declared-nationally-significant-as-amber-heat-health-alert-set-to-strike-13410279

Water comes up through the Thames Water mains pipe. Then goes straight down the Thames Water sewer pipe. Although hardcore Geography nerds may be interested to learn that we're now exposing the Clay layer.

Obviously I don't know what your community WhatsApp group looks like. However mine's just people yelling at each other in the street, innit.

https://m.youtube.com/watch?v=NZlA9iDF5cU&pp (Maybe It's Because I'm A Londoner, David Jones, Single, Audio, Topic).