System comprising at least two vapour pumps activated by a controller according to preset mode of operation

摘要

A vapour recovery system (1) for use in a liquid dispensing environment is disclosed. The system (1) includes a vapour pump unit (17) containing at least two pumps (18a, 18b, 18c). A controller (20) is configured to individually activate the pumps (18a, 18b, 18c) in accordance to a preset mode of operation.