The Quiet Pipe
With fire resistive construction or underground installations, the differences between plastic and cast iron are hidden from view. But there’s no hiding the differences in sound attenuation in above ground installations.
Simply put – there is no piping system quieter than cast iron. No one wants to hear the gurgling and sloshing sounds of water from fixtures on floors above flowing down the walls, especially in high-rise condominiums, commercial office buildings or high-end hotels.
Using cast iron for waste piping will result in a plumbing system that is up to 11 times quieter as compared to an all-plastic system.