There is no need to soak nappies in napisan or anything else before washing. Both washing machines and washing powders are much much better than they were 30 years ago so washing alone will get your nappies hygenicaly clean. Napisan etc are not good for nappies generally as they can degrade the elastic over time. Plus, wet pailing = poo soup!
![Puke :puke:](./images/smilies/puke.gif)
Depending on the age of your baby, solid poo should be flushed down the toilet and then the nappy just placed in a dry bucket (BF baby poo is water soluble so if your LO is exclusively BF you can just chuck it straight in the pail). Some people use wetbags instead of buckets, which works well too.
Most people then wash nappies every 2-3 days. I find that doing a cold rise before the main wash is helpful. Then use 1/4 dose of biological powder (if you have soft water, more if you have hard water) at 40 or 60 degrees and you should have lovely clean nappies