I have just processed a return for this product after using it a few times. There is NO suction of liquids. I spray the stain and there is nothing in the dirty water tank except some pet hair. I have an older girl who will sometimes leak a little and thought this might be a hygienic way to clean up. I have the Big Green which does a great job but is massive, heavy, cumbersome and noisy. Maybe this portable would suck up a glass of water but anything smaller than that is just getting pushed back into the fabric. I'm better off with a spray bottle of diluted carpet cleaner and a damp cloth.