> Bruce Peckett wrote:
> <snip>
> > A pump will (usually) add cold water to the boiler, the
> injector (when
> > you can get the bl**dy thing to lift) hot
>
> The only reason the injected water is hot is that it was
> heated by some
> of the steam from the boiler!
Er, yes! That's exactly what I was saying!
> If you need to lose a bit of steam
> temporarily, then using an injector is a convenient way of
> doing it.
You will get *some* drop in steam pressure when injecting water but not
much. That's the whole reason the bl**dy awkward incalcitrant devils own
device was invented in the first place!
If you want to reduce the boiler pressure by adding water, using the
feedpump to add cold water works much more effectively
> But
> not for so long that you overfill the boiler ;-)
In either case. That's why injecting or pumping water to reduce pressure
is bad practice. A good driver will not get himself into that situation
in the first place!
Bru
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