I just bought my new horse a fly sheet, the only ones they had were white with navy trim. Somehow my horse manages to get it filthy, which I guess most do. Last time I washed it, I was able to get it pretty clean but there were still some stains on it. I wanted to use bleach on it, but I was worried it would mess up the navy trim, would it? (I have never used bleach before on any laundry) If I can't use bleach how can I get the stains out or is it hopeless?