I have a lovely laundry sink with a bar of fells naptha and some disinfectant that I am more than happy to use for rinsing the kiddos things. def agree with not rinsing in the kitchen sink that IS against regulation not to mention gross! although I do rinse the newborn in the bathroom sink if they have a bad rash or need a good wash, I will clean the sink when done, just as you sanitize on a regular basis in the bathroom from the after washing of changing diapers. Not a big deal! I have learned after nearly 10 years to not be too afraid of the germs of poop and pee, not a big deal here!!!