The irony here is you are recycling glass bottles and yet you waste so much water leaving the tap running. I guess you never lived in a place where potable water was scarce and what you had in your cistern was all you had. To me, to see all that water go down the drain, it is profoundly disturbing.
Note that my hippy parents had a similar device but you would use a candle and an ice cube to fracture the bottle, and emery powder to finish it off. Worked great.