In my view the AGT pneumatic tube cleaners for cleaning of drains is completely useless. Although he actually dissolves blockages, but dissolve by the compressed air also equal to the pipe connections and sealing rings, so that after the use of this device, the drains are leaking. At the sink, this is not the problem, you just have to fix times to the hardware store to buy new sealing rings. I had, however foolishly started the drain in the shower. What a leaking effluent means in a permanently installed Shower, I certainly do not explain further ... never again!
