 Apart from changes to the boiler grates, the equipment remained in its original form until the station was decommissioned in 1969, when it was replaced by four submersible electric pumps.A Trust was formed in 1974 to conserve the site as a static museum, but the plans soon developed to include the refurbishment and regular steaming of the engines.One of the beam engines was operated in 1975, using the only boiler that was certified to be safe at the time.