refil is a machine that is meant to be an alternative to a vending machine. Instead of consuming a plastic bottle everytime you consume soda, you can just consume the soda instead.
So refil is a vending machine?
refil is not a vending machine. You can't just dump things on it. It's a series of tubes.
How much does a drink from refil cost?
This was a semester long project. Do you think we would be able to get a US currency validator installed? It's free. That's right, it keeps on getting better and better.