GMAK Industrial on Instagram: "This is a two pipe steam system which we don’t see very often. Most of what we work on is one pipe steam, but this building is on a whole different scale. Two massive boilers covering pretty much an entire Bronx city block. You walk the hallways thinking you’re at the end and you’re not even close. To their credit, the building was built smart. Return lines were repaired properly and left accessible with steel grating so future leaks can be handled without tearing