'Total monster': fatberg blocks London sewage system | Environment ...
https://www.theguardian.com/.../total-monster-concrete-fatberg-blocks-london-sewage-s...
2017/09/12 - Thames Water must break up congealed mass of fat, wet wipes and nappies to prevent raw sewage flooding streets.****
Why you should never pour grease down the drain
https://www.youtube.com/watch?v=7alEYTMtELk****
America’s secret shame: Pouring bacon fat down the drain.
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