The National Archives
Innovations in toilet design ↗
Patent history: Alexander Cumming and the 1775 flushing water closet. Search record verified; full page access restricted during this build.
Science Museum
The development of flushing toilets and why Thomas Crapper was not their inventor.
CDC
General handwashing guidance: soap, running water and at least 20 seconds of scrubbing.
WaterSafe
How can I tell if I have a leaky loo? ↗
A constant trickle may indicate a leak; some leaks are silent. Contact a suitable plumber or water supplier.
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