Talk:Boiler feed pumps and injectors/@comment-43984939-20191001095243/@comment-109.146.163.105-20200515225353

Hi, I am working through similar issues. The axle driven pump (which I assume is as per the original design as I obtained it part built) does put a load on the engine. This can be seen both statically (e.g. on a rolling road) and on the track. That being said for me the regular top up of the boiler works really well and the pump, assuming it is to the original design, allows a circuit of the track with a top up with the injector when needed. The tanks on mine are isolated for axle feed only and the injectors are feed from the driving trunk. I decided to have this arrangement after reading about the sensitivity of water temperatures and injectors. So far I have had faultless operation. As a relative new-comer to the model loco scene my thoughts at the moment are that axle pumps seem to fill a need if used properly in conjunction with injector / hand pump. What are other opinions on this?