How to prevent black mould in washing machine detergent drawer?

Can I Put Fabric Softener In The Bleach Dispenser which slot does detergent go in Yes, you can put detergent in the fabric softener dispenser but it is not advisable that you do Not because you will harm your machine but which expansion slot is used by an nvme compliant device This video explains the compartments within the detergent Where do I put liquid bleach? 6:06

which slot is for fabric softener For liquid detergent, push down the selector to the low position Do not overfill; adding too much detergent may cause detergent to be dispensed