Top critical review
Reviewed in the United States on October 12, 2018
Helped somewhat to remove some gunk from the drain, although it wasn’t completely clogged. They recommend fast application so the cylinder freezes gue to fast gas release (thermodynamics). So I did it fast by pulling trigger all the way, and the cylinder indeed froze. I left the device aside and went checking what came out of my drain. In less than a minute I heard a big hiss from the attic. I was shocked seeing just one piece of the device with the trigger and pipe but the other part with cylinder and plastic thing that held the cylinder, completely disappeared! Yes, it broke the plastic threads and flew away like a rocket that I could never see it again. So the problem was the residual gas in the cylinder that was frozen after application, warmed up and created pressure that broke the piece apart and launched it to the space. Learning from this incident is that it is unsafe to make high pressure device made out of weak and cheap plastic.