Would like to get a machine to use at home that will work with just vinegar and water (have read on here that some of you use that) rather than renting one. It should be fairly light and okay for someone with back problems to use, and work on stairs. Already have a satisfactory vacuum but it's okay if carpet washer is also a vacuum as long as it it not over budget.
Significantly cheaper than £150 would be good too. and will be considering second hand.