What patch should be used for a pinhole leak in a straight section of a fire main?

What patch should be used for a pinhole leak in a straight section of a fire main?

• A. Soft pipe patch
• B. Box patch
• C. Duct tape patch
• D. Clamp patch

Answer: (A)

A pinhole leak in a straight fire main is best addressed with a soft patch because it’s flexible and quick to apply. The soft patch, typically a rubber patch secured with hose clamps or bands, can conform to the curved surface of the pipe and seal a tiny hole without needing to cut holes or bolt on a rigid plate. It provides a reliable temporary seal while you secure the area or arrange a more permanent repair. A rigid box patch would require cutting and bolting a metal plate around the hole, which takes more time and is less adaptable to a small, round opening. Duct tape isn’t dependable for pressurized fire mains and isn’t considered a proper repair. A clamp patch can work in some situations, but for a pinhole in a straight section, a soft patch offers faster application and sufficient sealing with minimal setup.

A pinhole leak in a straight fire main is best addressed with a soft patch because it’s flexible and quick to apply. The soft patch, typically a rubber patch secured with hose clamps or bands, can conform to the curved surface of the pipe and seal a tiny hole without needing to cut holes or bolt on a rigid plate. It provides a reliable temporary seal while you secure the area or arrange a more permanent repair.

A rigid box patch would require cutting and bolting a metal plate around the hole, which takes more time and is less adaptable to a small, round opening. Duct tape isn’t dependable for pressurized fire mains and isn’t considered a proper repair. A clamp patch can work in some situations, but for a pinhole in a straight section, a soft patch offers faster application and sufficient sealing with minimal setup.