PPRhot and cold waterisvery safe,physical and chemical propertiesare much betterthanthePVC pipe.Theconnectionbetweenthetwoaregluedconnectionshould be no technicalproblem, buttheoldpipeina few years ago, the surfaceis close toaging,whether there isa goodbonding strengthshould be considered,withconstructiontodiscuss.Ifmay bethe bestor full-for-PPR pipetoavoidfuture trouble. OurPVC pipes arePVCmaterial,able to adapt toless than60 degreeshot water,butwaterto be used fortheentranceis notsafe,ordinaryPVC pipeis more prone toaging.