Re: Customer used dye and now getting marks on clothes.
Thanks to all who took the trouble to reply.
The water around here is fairly soft, so I am not bothering with Calgon.
However I will change the Hoover AL130 01 door gasket and try a couple of 95oC washes, followed by a 40oC wash with washing soda crystals. Then I will try a test wash with some old dust sheets in. I hope that will do the trick.
I will also talk the customer out of using dye in their washer again.