Right. I've had to use the big Nathan injector on both 4449 and 844 over the years during long down grade operations (remember, the Worthington Feedwater System should NOT be used when the throttle is closed down to just a drift), and when the Worthing System had a malfunction. Although sometimes a bit temperamental (bad water usually causes internal mineral build-up), the Elesco Exhaust Steam Injector on Challenger 3985 can be used at any time, even when sitting on display.
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