I'm having a lot of problems with detergent build-up. I've finally found a stripping method that works for us, but I don't want to have to do it every month or more!
I'm pretty sure the problem is detergent build-up because when I stip, I boil the diapers and then rinse them in the washer and I have TONS of suds. I use very little detergent when I wash and don't have apparent suds when I rinse. I usually do 2 extra rinses (3 total). I've been using Purex F and C liquid. It's not long before my diapers start to stink like ammonia. Then DD is likely to get a bad rash, so I strip again.
I have hard water very high in iron, but we have a softener and use iron-out salt. Chemically, I'm not sure what that leaves us with.
I'd appreciate any suggestions that would keep me from having to strip so often.
I have hard water and haven't had any build-up problems using Nellie's Laundry Soda. I use just half a scoop for a large load. Before I switched to clean-rinsing detergent I stripped my washer by running several hot cycles with a cup or so of vinegar.