Common areas generally pertain to the properties and amenities of an HOA that all homeowners can use. These include hallways, elevators, sidewalks, pools, parks, and fitness centers. The HOA is typically responsible for maintaining and repairing these shared areas.
If the pipes are only inside individual units or houses, they're the unit owners' to handle. However, when the plumbing serves multiple units and extends into common walls, shared spaces, or underground, it usually becomes the HOA's responsibility.
Laws always supersede governing documents IF they conflict and the law applies to your HOA. In California, the Davis-Stirling Act may take precedent over general corporation codes because it's specific to HOAs.
Leaks in your unit are your responsibility, so you will need to call a plumber for repair. If the leak appears to be from a common area water line, call the Association's property manager. Provide as many details as possible about the nature and location of the leak.
Laws always supersede governing documents IF they conflict and the law applies to your HOA. In California, the Davis-Stirling Act may take precedent over general corporation codes because it's specific to HOAs.