DynaLiner PVC pipe has an expected life of 400 years and is recyclable up to seven times. It is made in factory, so the physicals remain the same from the factory to completed installation. The liner is inert as it has no chemicals that are going to impact the environment. It can be installed quickly, has a small installation footprint and uses little energy to install. It is chemical-resistant and uses low pressure, which reduces the chance of damage to the host pipe. 205/314-2498; www.dynalinerllc.com.