I have no problem with understanding this.
Pump goes on one side of the T piece , the vac bed on the other. The squashed frozen release pipe is at 90 degrees to this fitting.
Air is drawn out in an air tight system and then shuts off. When the ice melts the volume of water will be less than the ice was unclamping the pipe allowing an air leak to break the seal.
The really neat thing is that there will be no wet patch as the water should be trapped in the fitting ready to be frozen again for next time.
Pump goes on one side of the T piece , the vac bed on the other. The squashed frozen release pipe is at 90 degrees to this fitting.
Air is drawn out in an air tight system and then shuts off. When the ice melts the volume of water will be less than the ice was unclamping the pipe allowing an air leak to break the seal.
The really neat thing is that there will be no wet patch as the water should be trapped in the fitting ready to be frozen again for next time.