“I have tried the device multiple times on a clogged condensate line with a mini split unit. I clearly can get more suction and more pressure from a shop vacuum that costs less than this device. I am truly disappointed with the function of the unit, which in theory should work. I suspect that the piston design with the chosen materials does not develop sufficient suction or pressure to function as advertised. I had doubts as to whether or not it would work, but I took the chance. The gamble was not worth it in retrospect.”
