 In 1836 an enormous chimney at least high was built at the factory to disperse the pollution resulting from the use of this process.The business was very successful and in 1832 it was in the top 20 of the soap-making businesses in the United Kingdom.Thomas Hazlehurst senior died in 1842 and the business was continued by his four sons, William (c. 1801–2 August 1859), John (12 March 1803 – 29 August 1885), Thomas junior (17 April 1816 – 14 July 1876) and Charles (27 November 1819 – 14 December 1878).