If a hose is installed with a twist in it, operating pressure will try to force it straight. This
can loosen the end fitting nut or cause reinforcement separation which can result in hose failure at
the point of greatest stress.
The printed layline on the hose is a good indication of this. If twisted and the assembly includes
a swivel nut end fitting, loosen the swivel nut, untwist the hose, and retighten the nut.
An assembly with two elbow end fittings will twist if the end fittings are not in proper
relationship to each other.