Wow, lesson learnt.

[AquaPin]

Originally Posted by daplatapus

I run my washer through once empty to rinse any soap residue, then stick the filter socks in by themselves with a 1/4 cup of bleach through a heavy wash cycle and an extra rinse cycle. Let air dry for a day after that.
Probably over kill, but works for me.

Do all the same here except I do not do the pre-rinse of the washing machine.