How do i strip wash my itti's.Help.

I always washed all of G's nappies at 60 including the itti outers and they are fine, As pp said bio is best and avoid liquid like the plague, it is bad for your clothes and machine.
When I strip I use soda crystals

Thanks for your reply, now have purchased some persil non bio for my nappies, and going to some stripping today...lol. With a diswasher tablet and see how all goes.
Thanks for all your help ladies.