I have inherited my mother-in-law's Hoover 1700W vacuum cleaner and it still works! BUT the filters have never been cleaned (I can do this!) and it had no bag in situ. It is messy emptying it bagless. Should it have a bag? if so, which one? I was hoping you might have a manual which might tell me. I only want it for the feed and tack rooms, so I'm afraid there is not a great deal of spare cash for it!