If steam is high and lift long, the injector will lift the water better if the handle is turned a little less than a quarter of a turn, until the water appears at overflow—then start to boiler as before.
If you have valves in steam and suction pipes, be sure and open them before starting.
Q. How high will an injector draw its supply?
A. About twenty feet is the limit.
Q. How hot does an injector deliver water?
A. From 150 degrees to 200 degrees, according to the steam pressure and the proportions of its capacity at which injector is working.
Q. How should the jets be cleaned when they become scaled?
A. By soaking in diluted muriated acid, about one part acid to ten parts water.
THROTTLE.
The Throttle on an engine is the valve which allows the steam to enter or be shut off from the cylinder and should always be left wide open on a governor engine when running, as the governor regulates the quantity of steam required to run it at its proper speed and is much more economical.