This is the last of a four-part “Sealing Sense” series that has provided guidance on the best practices to minimize the size of the sealing system energy footprint. The first article discussed the energy losses from the interaction between the faces of a mechanical seal while the second discussed the thermal energy required to maintain the proper temperature of the interfacial lubricating fluid. The third article detailed the thermal energy footprint necessary to remove diluents introduced by auxiliary processes. This final article will address the energy footprint from repairing a pump after a leak in the sealing system required intervention.