My understanding is the water tested in this study is the water in the lavatory faucet and what they use to make hot beverages onboard. If you ask a flight atte

My understanding is the water tested in this study is the water in the lavatory faucet and what they use to make hot beverages onboard. If you ask a flight attendant for water you would always get water from a can/bottle/box depending on airline, at least based on my limited experience.