I'm seeing brown water from my bathtub facuet (hot only) when I fill my bathtub. It only happens in the tub, though; Not in the shower or sink.
I saw some other posts that talk about draining the hot water heater, but I don't think that is the issue, because I am not seeing it anywhere else.
The system is a TurboMax "on demand" system (a separate zone on the heating system).
Any ideas?