The pipe must be clean when the PPR pipe is hot melted

Before welding the PPR pipe, first ensure that the pipe is clean and dry. That is, the surface of the PPR pipe must not be dirty with oil, dust, impurities, etc. Otherwise, the dirt and the welded pipe part will melt together during hot melting, which may leave gaps or flow to the inner wall of the pipe, contaminating the water quality. When the PPR pipe is welded, keep the pipe body dry. If there are water droplets on the outer wall of the PPR pipe, air bubbles may be left during welding, resulting in a hidden danger of false welding.