We sanded and stained our victorian pine floor and then lacquered it using acrylic lacquer (apparently this is commonly used for parquet floors). It looked great until we did some decorating and generated a lot of fine dust (from rubbing down plaster walls etc). This settled into the grain of the wood and doesn't seem to come out. Are there any products/techniques which would help to shift it? We tried damp cloth etc., but it seems to leave the wood looking dull, perhaps because we are in a hard water area, not sure. If anyone knows of a good polish or something similar that would be very welcome...