I use it each rinse cycle but only about a quarter of the amount required in instructions and I put in it with the bac-out to help the enzyme cleaner work more effectively. I do a short rinse cycle and then a wash cycle.
Married to DH G
4.28.09 cloth-diapering, bf'ding WAHM
of DS W 12.05.11
and our new addition DD J 7.26.13