Where is the potable water system indicator located on the ERJ 175?

The potable water system indicator on the ERJ 175 is located on the aft flight attendant (FA) panel. This panel is specifically designed for flight attendants to monitor various systems during flight, including cabin-related functions. The aft FA panel provides essential information regarding cabin services and safety features, making it convenient for crew members to access and utilize this information quickly during operations. The placement of the potable water system indicator here allows the flight attendants to efficiently monitor the status of the potable water supply, ensuring that they are aware of availability for passenger service. Other panels mentioned, such as the forward FA panel or cockpit panel, do not house the potable water system indicator, as they cater to different operational needs and responsibilities.