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Comment: It is available at any supermarket where I live. It is usually right next to the tonic …
Comment: Don't use tonic water. Use plain carbonated water. In the US it's usually called seltzer.
Comment: No, it's half milk and half cream. I don't know where you live, but it's very common in…
Comment: Where did you find the "side outlet elbow" fittings? I didn't see them on McMaster-Carr.
Comment: How about making this out of PVC? Would that probably be too flimsy?