| HDPE | PVC | Ductile Iron | |
|---|---|---|---|
| JOINT LEAKS* Installed leakage allowance |
Zero gallons per day, per mile | 113 gallons per day, per mile* | 125 gallons per day, per mile* |
| TRENCHLESS | The preferred choice Saves money, completes work on time Little to no disruption to roads and highways |
None in the past Requires special joining |
None in the past Requires special joining |
| CORROSION | None | None | After a few years ductile iron will corrode. |
| INFILTRATION | None: No contaminants entering the pipe system. | Wekened joints and shifting soils do not allow for a tight seal. | Wekened joints and corrosion can lead to a leakage. |
| FLEXIBLE/ LIGHTWEIGHT | FLEXIBLE: Saves time and money transporting and installing. | Not flexible - more difficult to transport and install. | Inflexible and heavy more difficult to transport and install. |
* Based on 12-inch AWWA C906(for PE), C900(for PVC) and C110(for DI) pipe at 100 psi.