In the past few months, my pale coloured laundry has started to come out stained. Firstly it was the armpit deodorant yellowing, but also whites going grey and yellow splodges like the deodorant ones. I tried soaking in vinegar and all I got was stained clothes that smell of vinegar.
What could be causing this? I did always use supermarket non-bio liquid and switched to using powder sometimes. It seems to happen when not using powder too, although there could be residual in the machine. It is a washer dryer and probably 5/6 years old.
Any ideas how to make this stop? Never used to happen.