Talking about Napisan!- I've always thought it was a big no no too. But I read something interesting the other day on a nappy site. The owner recommended using Napisan (or a similar BICARB based product) to do the a strip wash. Which meant soaking them overnight in it. Then doing a rinse with Canesten Laundry rinse or Dettol Fresh. And do this every 1 or 2 weeks..Interesting technique I thought (This lady makes PUL pockets).