Hi, I have yes.
I made a mistake in the way the code is written that when you add water it should spread the DM across the whole amount but the code didnt do that.
I have fixed the issue now and will be available in the next update, now when you add water it changes the amount of liquid the DM has to spread in so you can empty more out of the store.
It will never empty without water but adding water makes it so you can keep pulling more out.
Also adding fresh slurry will act the same as adding water ie fresh slurry from the cow shed.
Hope this helps.