Under which condition should an EWARP soft patch not be used?

EWARP, or Emergency Water Activated Repair Patch, is specifically designed for temporary repairs of leaks in various types of piping systems. However, its use should be avoided in specific conditions to ensure safety and operational effectiveness.

Using an EWARP patch on JP5 (fuel) lines is not recommended due to the flammable nature of jet fuel. The material used in EWARP may not be compatible with JP5 and can deteriorate, leading to potential leaks or even fire hazards. Proper sealing of fuel lines is crucial due to the risks associated with flammable liquids, and therefore, specialized repairs or materials that are specifically designed for fuel systems must be utilized instead.

In contrast, there are other types of lines, like freshwater, wastewater, and cooling water lines, where EWARP can potentially be used under certain conditions, making the use of the patch viable for temporary repairs in those situations. However, the risk associated with using it on fuel lines, particularly given the combustible nature of JP5, highlights the necessity of employing the correct repair techniques and materials for specific substances.