Got a few questions as a bit of a newbie.
1) After running it, should I drain the boiler of water? I left the blow down drain open as it cooled down but should anything else be done?
2) Is there any way to refill easily when running, maybe a replacement cap that you can attach a water bottle too? At the moment I'm releasing steam from the blow down and then opening the water cap in the cab.
3) Final one. The wire in the picture below, any idea what its for? It seems like it should connect to something (its got a PC like connector) or is it just the aerial for thru RC or something?
![Image](http://i.imgur.com/cBh5aQn.jpg)