<prompt> Bhala okuqhubekayo kwalesi sigaba - Cishe ngawo-1850 izinga lamanzi okuphuza laba yindaba ekhathaza umphakathi, futhi uJohn Snow wahlola isimo samanzi ngo-1849. IPhalamende lamukela uMthetho Wamanzi Wedolobha Elikhulu ka-1852 ukuze lenze amalungiselelo okuqinisekisa ukunikezwa kwamanzi ahlanzekile nanempilo eDolobheni Elikhulu. Ngaphansi kwalo Mthetho, kwaba okungekho emthethweni nganoma iyiphi inkampani yamanzi ukuba ikhiphe amanzi ukuze asetshenziswe emakhaya emfuleni iThames ngemva kuka-August 31, 1855, futhi kusukela ngo-December 31, 1855 wonke amanzi anjalo kwakudingeka ahlolwe ngempumelelo. Abaqondisi base benqume kakade ngo - 1847 ukuba bathuthele umthombo wokungenisa amanzi emithonjeni yabo eSeething Wells. Izakhiwo zaqedwa ngo-1852, futhi iLambeth yahlanganiswa lapho isebenzisa amapayipi ayo edolobheni yiChelsea Waterworks Company. Lezi zakhiwo zaba nengxenye ekuphenyweni kwezibalo kukaJohn Snow ngesikhathi kuqubuka ikholera  <response>: , lesi sikhungo sasingaphezulu komfula kuneminye imisebenzi eminingi yamanzi futhi ngenxa yalokho sasinamanzi ahlanzekile, okwaholela ekufeni okuncane kwekholera. 