Hee Hee, black nappies would probably be the best way to go!!!
Yep I drypali my flats & dont have stains, just as you do modern cloth, throw them in a bucket & with a newborn (which is when I use my flats) I actually washed every second morning, rinse poo off (which is pretty sticky & runny) & then throw nappy in the bucket & no need for soaking, napisan etc!!
Although I did throw a bit of napisan in the washing machine every few weeks with my nappies, I just didnt soak them...
I had also bought napisan (b4 I knew about dry pailing)... or just return it Caddie & buy something else???

Happy nappying!!!