It said sales for the last three months were £360.1mln at constant currencies and excluding the impact of the soft drinks levy in the UK.
The maker of J2O and the Robinsons line of soft drinks said France and Ireland “remained more challenging” with a further softening since the half-year.
By contrast, Brazil and the wider international business “continued to deliver solid revenue growth”.
"Overall we have delivered a solid performance against a more challenging backdrop in quarter three,” said chief executive Simon Litherland.
“We remain confident of achieving market expectations for the full year, underpinned by the strength of our brand portfolio, exciting commercial plans and a tight focus on cost control."