This is from the hongkongairport.com website, there is no mention of “free water” is if anyone knows please let us know.
Over 50 water drinking fountains are available throughout the terminals. In additional, hot drinking water facilities are also available in the following locations in the restricted area.
Terminal 1 :
Near Gate 1, Level 6, Departures Level
Near Gate 15, Level 6, Departures Level
Near Gate 26, Level 6, Departures Level
Near Gate 34, Level 6, Departures Level
Near Gate 44, Level 6, Departures Level
Near Gate 61, Level 6, Departures Level
Near 4.3 Female Toilet, Level 4, Departures Level
Near Transfer Area E2, Level 5, Arrival Level
North Satellite Concourse : Near Female Toilet, Level 5, Departures Level
SkyPier : Opposite to Berth No. 5 & No.6, Level 4, Departures Level