Originally Posted by
Howgozit
Speaking about fuel saving, on the 9 we have to run the APU to make coffee and etc since the potable water system is pneumatically powered is the 88 the same way?
The -88 has a switch in the galley for an electric pump that should pressurize the potable water system. I emphasize the word "should" as it doesn't really work sometimes or is slow to pressurize the system. In that case, we need to run the APU to get water pressure.