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They don't rinse either. I have to run the washer through the cycle 3 times or else I get a rash from residual detergent. Yes, I know they have detergents specifically made for these washers, but they all have perfumes and dyes. Again...rash.
So much for energy and water saving.
I know what you mean - there are significant deposits of soap lining the sides of the washer after every load.
I use All hypoallegenic, an I get it from Sam’s. You might give it a try. Also, I have a recipe using Borax, washing soda and soap that I want to try...you get the ingredients at Vermont’s Country Store or Mast General Store.
You, as a consumer are not permitted to have a hot or warm rinse either.