Polypropylene pipes are a truly innovative thing in the plumbing market. Polypropylene pipes confidently replaced metal water supply systems due to ease of working with them and possessing excellent technical characteristics. In addition, for their installation, you do not need to mess with welding, as it was before. Typically, polypropylene pipes are soldered using a special soldering iron. How to do it? Accurately adhere to the points of the instructions given below.