Which is better, PPR pipe or PVC pipe

PPR tubes are better. However, the scope of application is different, and the characteristics are different. If it is only used for waterway renovation, cold water pipes, etc., from a quality point of view, PPR pipes are definitely better. But there is one thing everyone should pay attention to. There are many PPR pipes that say: Do not install. The non-exposed installation here refers to the installation outdoors, under sunlight. If the PPR tube is installed outdoors, it must be replaced every two years, otherwise it will breed bacteria and greatly shorten the service life. It's not as good as PVC.