In 1821 Cooper purchased a glue factory on Sunfish Pond for $2,000 in Kips Bay, where he had access to raw materials from the nearby slaughterhouses, and ran it as a successful Business for many years, producing a profit of $10,000 (equivalent to roughly $200,000 today) within 2 years, developing new ways to produce glues and cements, gelatin, isinglass and other products, and becoming the city's premier provider to tanners, manufacturers of paints, and dry-goods merchants. The effluent from his successful factory eventually polluted the pond to the extent that in 1839 it had to be drained and refilled.