Ventilation system for petroleum sump

A ventilation system for a petroleum containment sump, comprising

• a. a petroleum containment sump comprising a bottom, at least one sidewall, a top, an interior space and at least two openings,
• b. a first pipe comprising an interior end and an exterior end, said interior end extending through one of the openings to the interior space and said exterior end being above ground and opening air,
• c. a second pipe comprising an inside end and an outside end, said inside end extending through one of the openings to the interior space and said outside end being above ground and opening to fresh air,
• such that fresh air enters the petroleum containment sump through one of the pipes and petroleum vapors and moisture exit the sump through the other pipe, thereby preventing or retarding corrosion of metal components inside the petroleum containment sump.