In London he built Marchants Water Works, rebuilt London Bridge Water Works and carried out improvements to the New River. Among his many innovations were pumps worked by water‑wheels which rose and fell in accordance with the level of the stream.
He worked on several water-related projects in London, including building Marchants Water Works and reconstructing London Bridge Water Works. He also made improvements to the New River. His innovations included pumps powered by water wheels that rose and fell with the stream’s level.