21.   Then when you sand the floor you will also sand any wood filler that got smeared on the wood.

22.   Then you will have to sand the floor to clean off any residue that remains.

23.   There is no cure, in my opinion, except to have the floor sanded and two or three coats of oil-based polyurethane applied.

24.   Until now, the only way to get rid of them was to sand the floor, bleach it, and hope you got most of it before revarnishing.

25.   Workers spent days sanding floors, throwing out decrepit furniture and exterminating rodents.

26.   You have to live with them until the floor is sanded and refinished.

27.   You could sand the floor, wash it with paint thinner, then apply one or two coats of an oil-based polyurethane varnish.