Hi
The instruction sheet I got with mine suggests adding a little vegetable oil to the chocolate, haven't used it yet, so not sure if it works, but I would only add a little, I probably would help it flow, good luck with it
M
You should use chocolate with over 50% coco usually cooking choc you can use cadbury's aswell.
You do need to use oil otherwise it won't flow, sunflower or olive oil is fine.
My only other tip is don't add alcohol to it!!
Lakeland Ltd do a chocolate for a fountain but to be honest Cadburys is just as good and cheaper, and even with Lakeland you need to add oil and its not as gross as it sounds. Makes it run really smoothly, enjoy.x