Softened water either via substances such as phosphates or mechanically will get you but so far in terms of reduction of detergent used. At some point however using less "soap" will hinder cleaning resulting in a poor wash.
In best of all possible worlds laundry detergent would be formulated with phosphates as builders eliminating issues from zeolites. That is not possible largely any longer so there you are.
Long as you're adding zeolites to wash in any amount there will be risks of residue and streaking.
In best of all possible worlds laundry detergent would be formulated with phosphates as builders eliminating issues from zeolites. That is not possible largely any longer so there you are.
Long as you're adding zeolites to wash in any amount there will be risks of residue and streaking.