Right I'm off to the pet shop to see what I can get - it's a bit difficult living in a small town - when I was in London - a very big chain of pet store was 5mins away. Now it's a good 40mins drive - hubby works near there but he's only any good when told EXACTLY what he has to get!!
I gather you mean Hill tinned stuff and not the dry mix - I imagine they must need the liquid as she doesn't drink much water and god knows how much I drunk when breast feeding - it's thirsty work!
The evap mixture is a great idea coz can get all that in local shop - is this what I will wean the kittens with too?

Emily