Tender pump

[simonwass]

A handpump is useful but not 100% necessary.
Rules now usually state you need 2 independant means of getting water into the boiler, 2 injectors feeding through 2 clacks is fine if you fit 2 injectors. Fit a tiny one and a larger one.
For filling a cold boiler some take out a saftey valve, I dont like to see this as you are constantly stressing the threads, a better way is to feed through an injector overflow as per full size or you could feed through the blowdown valve.
What do you do though when the boiler is in steam and you need to top up and the injectors have failed due to low pressure? A handpump is a useful way of getting egg off your face and doesnt take much fitting or making. Dont go for the 3/8 or 1/2 inch ones though, go for 3/4 - 1 inch, in an emergency it may be a bit harder to waggle but you'll do less waggling, even the 2 1/2" scotsman has a 5/8 pump in the tender! 5 waggles and you're back to level!

[a4builder]

hello
I am also building a 9F but not from scratch I have a winson kit as a starting point, You must have lots of courage there are hundreds of bits to make some are fun the majority a fag. I also run a loco at public days at the club and find a tender pump invaluable. waiting for passengers means the axle pump is not always working and injectors can get the hump and not work scale or little bits of debris.
Defiantly put a pump in the tender you will use it often when running.
terry

[spamcanman]

I run my 'Manor' most Sundays but only use the tender pump to fill the boiler when starting up I don't even carry the handle while running, she also does not have an axle pump I depend entirely on my injectors one a high pressure the other low both pick up every time even while running.

[simonwass]

Jun 10, 2009 17:49:13 GMT spamcanman said:

I don't even carry the handle while running.

I just chuck the handle into the tank, always handy in emergency and stays clean. I could end up a long way from my toolbox when out on the Clayton!
Posh people fit a bit of copper tube in the tank for a holder.

[Andy Clark]

Jun 10, 2009 11:47:38 GMT simonwass said:

Rules now usually state you need 2 independant means of getting water into the boiler, 2 injectors feeding through 2 clacks is fine if you fit 2 injectors. Fit a tiny one and a larger one.

I was just about to make a post relating to injector experiences and picked up on this thread - I hope it doesn't take it off topic, but I saw your reference to one tiny and one larger injector. Other threads have discussed fitting a tiny injector and running it on a long duty cycles as part of normal topping up of the boiler like full size practice. I am currently refurbishing my Pansy and have removed the tiny (size 2?) injector that was situated under the side tank and never worked (I reckon a combination of water too hot and poor pipework). I am relocating it under the running board behind the cab steps and feeding water from a separate cold tank supply behind my driving car. Several fellow club members have suggested that these small injectors are more trouble than they are worth and require regular cleaning/maintenance. I have seen elsewhere reference to cleaning out injectors after every run using WD40, but wondered if there was any real experience of using tiny injectors in practice. My other option is to fit two larger injectors (size 4).
All comments gratefully received.

Andy