I'm 100% new to blender, but managed to finally get the object imported and to a point where I could see it. I want to try and remove the hose assembly from the main tank. I guess there isn't a giant eraser tool, so what would be the best way?
---- I highly recommend you watch some general tutorials to get an understanding ----
However, for this specific model it appears like the hose is not part of the drum geometry. You can select any point on it and then press Ctrl + L to select all linked. Then you can use delete (X) to get rid of the hose.