L.K.
I use any free and clear detergent on sale. I have a front loader, and use just a few drops, even for a full load. Next time you do the wash, see how many rinses it takes to get all the suds out of the water. If you end up doing more than 1 rinse after the wash, you're using too much. Keep decreasing the amount until you only need to do 1 rinse after the wash. If there is extra soap left in the diapers, it will decrease the absorbency, and may irritate baby's skin. I have been doing this for over 3 years and never had a problem. Good luck!