At what intervals shall vertical CPVC pipe be supported?

Vertical CPVC (Chlorinated Polyvinyl Chloride) pipe must be supported at each floor level to ensure that it is stable and that any vertical load is properly managed. This support is crucial because it prevents sagging, bending, or other forms of structural stress that could lead to damage or failure of the piping system.

By providing support at each floor level, the weight of the pipe and any fluid within it is distributed evenly. This practice also aids in aligning the pipe with other plumbing systems and contributes to maintaining the integrity of the installation over time. Proper support helps mitigate vibration issues and allows for any thermal expansion to be accommodated without exerting undue stress on joints or fittings.

Other options are not optimal for ensuring the safety and functionality of the system. Supporting only upon installation may neglect the ongoing requirement for structural integrity as the system ages or is subjected to temperature changes. Supporting every 10 feet or 12 feet could be seen as insufficient for vertical runs, where more frequent support is necessary to maintain alignment and stability. Therefore, the standard of supporting vertical piping at each floor level is the most effective approach for keeping the system secure and operational.