Moved into a 1955 house with carpet over hardwood. Pulled up some carpet tonight and discovered that the dark red foam in the carpet padding has stained our hardwood floors!
The stains are like spots of dried blood. Water doesn't soak them out. We're considering refinishing anyway, but does anyone know what causes this?
Could it have come from steam cleaning?
(You know how carpet padding is made of different-colored chunks of foam? Only one color, the dark red, bled onto the floor)