I use a special product specifically for clearing your washing machine, I think it's called Machine Doctor, you can buy it fin supermarkets. I was shocked at the grunge going down the drain 
I'd clearly wrongly assumed bio washing powder was sufficient to keep machine clean but, as I rarely use a very hot wash, goodness knows what was happily enjoying life in its innards......
Good Morning Tuesday 23rd June 2026
“We start school too early in the UK!”




.
so I take one to the launderette periodically and have it service washed and dried. It costs me £15. I even, sometimes, remember to collect it before they ring me up and threaten to charge storage! 