A proper taxidermy washing system will consist of minimum two utility sinks side by side. Or you can splurge a little bit and get yourself a double basin utility sink. Any experienced taxidermist will tell you it is a must, especially for a bird taxidermist. You will use one utility sink for washing in soapy sudsy water and the other utility sink for rinsing in clean clear water. Once you start the rinse cycle you will then drain out the soapy sink, rinse it out and then fill with clean cool rinse water. The whole concept is for you rotate your skin back and forth between the utility sinks, until evidence of ALL soap suds are extracted from your specimen’s skin. Bird skins require 3 to 5 rinse cycles in order to remove all soap from the feathers. Fur and feathers that have remaining soap suds, those that are not properly rinsed free of soap will tend to have a dull flat look once dried.