Hi! I am a long-absent forum member, glad to be back. We were gifted a cat tree a while ago, which had been used by a previous owner's cats. I have a very old model Shark steam cleaner, that I was thinking of using to thoroughly clean and disinfect the tree before we let our family at it. But I am not sure what nozzle to use or how to proceed, exactly. If you know how a floor model steam cleaner could work for this, please reply! I've only ever used the big rectangular floor attachment for floors, and the very fine directed-steam nozzle, for grout and corners and so on. I guess they would work for the platforms and the joints, but not sure what to do to clean cylindrical portions?