Here is a new powdered detergent that is produced by a reputable manufacturer, so that its quality is assured for your safety of trial use. May I ask you to try using it for your every wash from now, today, to the time before we return to visit you again on Nov 4 or 5? You can use it however you like. It is a normal concentrated detergent. And please fill in this Feedback form after your last wash. Thank you.