If hose couplings are leaking despite tightening, what should the fire fighter do?

Using a hose jacket is a practical and effective solution when dealing with leaking hose couplings. Hose jackets are designed to provide a temporary fix by wrapping around the leaking section, which protects against further water escape and allows firefighters to continue operating the hose without interruption. This method is particularly useful in emergency situations when immediate replacement of the coupling or hose isn't feasible.

In this scenario, it’s important to note that simply tightening the coupling may not always resolve the leakage if the gasket is damaged or if the coupling is misaligned. Replace or cutting the hose should be considered when the leaking is severe and poses a risk to operations, but using a hose jacket allows the firefighter to manage the leak safely and effectively in the meantime.