Which of the following methods is NOT effective in stopping leaks in distribution systems?

Ignoring a leak in a distribution system is not an effective method for stopping it. When a leak is allowed to persist without intervention, it can lead to several problems, including water loss, pressure drops in the system, and potential damage to surrounding infrastructure. Leaks can also contribute to larger system failures and create health hazards due to contamination risks in water supplies. Therefore, proactive measures are always necessary to address leaks properly and maintain the integrity of the distribution system.

In contrast, replacing the pipe, using a clamp, and applying a sealant are all valid approaches for managing leaks. Replacing the pipe ensures that any compromised section is removed entirely, thereby eliminating the leak source. Using clamps can provide a temporary solution by physically holding the damaged area together, and applying a sealant can offer a quick fix to cover smaller leaks effectively. Each of these methods directly addresses the leak, while ignoring it leaves the issue unresolved and potentially exacerbates the situation.