A. When considering copper and PVC pipe, you should consider several factors (corrosion resistance, sustainability, service life, etc.) when making a decision. Because of these issues and cost PVC is growing in popularity but copper has been used for years, due to its reputation for long-term durability. PVC pipe can be problematic on repair jobs with wait times of 24 hours. However, PVC pipe is frequently preferred over copper pipe when making repairs to older plumbing using iron pipe.