my cottage is circa 1890 and in the two upstairs bedrooms I would like to sand the floors as the boards although probably pine seem very sound (my neighbour has done hers and they look very good). I want to hire a sander for the job but after looking at the hireshops on line it seems you need an upright sander and an edge sander. Is there a machine that does both therefore not incurring two daily rates? I also read on a previous post that the best way to fill the gaps is with the second sand - pva and varnish mix - wait to dry then sand again, could someone confirm this. Many thanks in advance