Thomas Clark (of Aberdeen)
From Graces Guide
Dr Thomas Clark
1841 Took out a patent on a process for softening water[1]. Thomas Clark, Professor of Chemistry, in Marischal College, University of Aberdeen, for "a new mode of rendering certain waters (the water of the Thames being among the number) less impure and less hard, for the supply and use of manufactories, villages, towns, and cities," bearing date at "Westminster, the 8th March, 1841"
His process was first applied by the Plumstead and Woolwich Waterworks Co
1854 Petitioned to extend the 1841 patent[2]
1887 A division of scientific opinion prevented the inhabitants of Bristol using the Porter-Clark process because of the high level of magnesia in their chosen water supply[3]
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