Herders not Headers

[qutlx1@a...]

Good catch Bob, yes it should have said HERDERS. You described the typical 
Herders job when you talked about the old head switchman.Thats what they did. 
Just as info headers is a rr term as it describes the points at which the 
exterior heater coils in a tank are hooked together to the steam input and 
outlet lines. No lie. Leo