Did you invert the Draught can before opening it to activate? It used to say on the side of the cans - "invert 3 times, then pour straight." That's how I've always done it. I opted against paying out for the Nitro Surge nozzle - and your video helped me back up my decision 😅 I'll wait till clubcard prices have a tenner aff 😎
I did not invert the can, not so good at following instructions... Tbh, I am not sure if it still says that. The gadget is too pricey for what it provides, but it is a neat gift idea.