heavily to corrosion problems in pipes, structures, instrumentation, and electrical systems. Lift stations and pumping systems are particularly vulnerable as H 2 S sour gas readily attacks copper used in wires [...] nitrogen purge system which creates a positive pressure within the enclosure in order to keep undesirable ambient elements, including sour gas, outside of it. As opposed to an open loop system that uses fans [...] panel cooling technique helps mitigate hydrogen sulfide corrosion problems with wastewater pumping systems. Money-saving approach yields longer service life while conserving energy. Enclosure cooling units