The idea of amalgamation was first raised by the Birmingham Canal Navigations in 1820, but the Wyrley and Essington had rejected the idea. In 1822 they considered whether trade could be improved by building links to neighbouring canals. A number of mine owners suggested a link between the two systems at Walsall in 1825, and surveys for links to the Staffordshire and Worcestershire Canal and to the Birmingham system were made in 1826 and 1827. There was more pressure for a link at Walsall from a group of industrialists in 1829, which resulted in the Wyrley and Essington proposing amalgamation. This time, the Birmingham company were not interested, and in 1835 they dismissed the idea of a junction at Walsall. In 1838, the Walsall contingent suggested the Birmingham company could build the link, and the Wyrley and Essington could supply the water. Still the Birmingham company were not interested, and so the Wyrley and Essington decided to submit a bill to Parliament to build the link themselves. Almost overnight, the Birmingham company's attitude changed, and an agreement to amalgamate was signed on 9 February 1840, which was ratified by an Act of Parliament obtained in April.