Your unit is already connected to Brisbanes water network and is paid for quarterly as part of your rates bill from Brisbane City Council. The authority that controls Brisbane Water, Queensland Urban Utilities will read your water meter remotely (your meter is located in the services cupboard in the foyer of your designated apartment level). You should make note of your water meter reading upon moving into your new unit.
For further information on your water supply, please visit:
https://www.brisbane.qld.gov.au/environment-waste/water/water-supply-sewerage