I have a midget widget set up on my corny,now the cylinders are empty and I find out no one wants to/can refill them! Will a soda stream cylinder fit this system?I see argos sell them.Bottling is such graft!
The newer sodastream will NOT fit.
Try your local HBS, some offer refils for sodastream.
Or you can get some old ss bottles off freecycle/bootsales etc and get them refilled by SS themselves (expensive option that one)