To Isabella of Melbourne, I can't give you the name of a particular supplier as I don't buy it in bulk, but I do know that horse owners buy acv in bulk. So check out horse feed stores and if you can't find any, ring your vet and ask where you would be able to get horse feed in your area.
Hi Isabella, I buy ACV direct from the Apple Orchard in Bacchus Marsh. It's very inexpensive (less than $2 per litre) and you need to take your own containers for them to fill. Cheers, Sue.