I put one half of the drop cloth piece into the washer, put it on hot, and set it on the largest size load setting. Double check that the finish on your tub is safe to interact with bleach. They cost $80 for the pair. Now I’m excited to give this a try even though some of them have paint spots, because surely I can salvage most of the cloth for pillows, small upholstery jobs, runners etc. I have to say that I agree with the above writers that encouraging a lot of people to use that much chlorine bleach is perhaps not the best thing for our environment. And if bleach didn't remove any color then nothing will and you're lucky using the bleach didn't disintegrate the fabric! If using bathtub, immediately wipe down with a bathroom cleaner that contains these I love your end results, just lovely! Love your slipcovers! Also … So I’m wondering if your couch slip cover is one piece or did you do the cushions separate like on the wingback chairs? I think they changed their product and I’m so disappointed. If you want some specific brands to dye your slipcovers, we have found out that Rit Dye , is a good brand and it’s very easy to get on Amazon. They measured 7’5″ after drying