Why is there always water left in the conditioner compartment after my washing cycle has finished?

Someone asked me this question the other day, “can you tell me why after my washing cycle has finished there is always water left in the conditioner compartment?”

As it happens I could point them to Washerhelp where I’ve answered this question already only I’d phrased the question differently which may have made it harder to find – The fabric conditioner / rinse aid compartment is always full of water