If they are smaller stains, I would try Spot-Shot spray/aerosol cleaner. This has worked on every spot/stain I have ever needed to clean up. DH has very little sensation in his feet, and recently stepped on a nail. It came up, through his boot, and was cutting into his foot with each step. He took his boot off, and walked all over the house, bleeding as he went. He then sat down, and left quite a puddle! I came home, and started freaking out by all the blood all over! Once I figured out what had happened, (he had no clue he was bleeding) I started with water and towels, soaking it up, them sprayed the Spot Shot on, scrubbed a bit more, and every spot came out. I've used it on mud, motor oil, red wine, red koolaid, and soda, you name it. Might be worth a try before spending money on a cleaning unit.