All I did with mine was get the wet (they where dirty already so I just washed em with all the other dirties) took them out the washer put em in a washing basket, put a full packet of Dylon machine fabric dye on the drum at the bottom (I would of only used half if it was the nappies) with 500g of salt (that never changes how ever much dye you use) over the top if the dye, then the nappies and the wrap. 40 degree wash with nothing else in, the instructions tell you to the wash again on 40 with liquid/powder in, but I read on TBW to do the hottest wash your machine will do (95degrees) and then thats it, its pretty easy and only takes time as far as the machine cycles