What is the impact of using a hitch on rope strength?

Using a hitch typically reduces the effective strength of a rope because the configuration of the rope can create additional friction and stress points. When a rope is hitched or knotted, the fibers within the rope may not distribute the load evenly anymore. The bending caused by the knot can lead to localized stress, which weakens the rope at that point.

The reduction of strength varies based on the type of hitch used, but it is commonly accepted that the strength can be significantly compromised. In many instances, it is understood that a hitch can reduce the rope’s strength by about 30% to 50%, depending on factors such as the knot type and the material of the rope. Therefore, stating that the rope strength is reduced to 75% accurately reflects the considerable impact of hitches on the overall strength and effectiveness of the rope in practical applications in plumbing and other fields where rope is utilized.