Currently, the water isn't included but other liquids should be. Do you have the liquids with the cost in your inventory? Could you show us a screenshot of the batch with the liquid in it?
Will the cost of water be factored in at some future point? If we pay for it, and enter it into inventory, it certainly should be factored in as it is a part of the cost of making the product.
Absolutely! We are also currently working on a section for liquids, like milks, aloe vera gel, vinegar, beer, wine, well, whatever liquids we soapmakers use. When we get that, those will also be in inventory/batch with costs.