At what condition is fire hose particularly vulnerable?

Fire hose is particularly vulnerable at the folds due to the stress and potential wear that occurs in those areas. When hoses are coiled or folded, they can develop kinks or sharp bends that may create weak points. These stress concentrations are more susceptible to abrasions, damage from the environment, or excessive bending, which can lead to leaks or hose failure under pressure.

Additionally, the integrity of the material can be compromised at these points, reducing the overall lifespan and reliability of the hose. Proper storage and handling techniques, such as using hose racks or ensuring proper lay patterns, are crucial to avoid damaging the hose at these vulnerable points. When hoses are folded correctly or stored straight, the risk of damage at the folds can be mitigated, ensuring they remain functional and safe for use in firefighting operations.