Reported hot water system failure

Some central hot water systems can fail after as little as 8 years of what seems normal service.

The equipment was only 8 years old when water began leaking into the unit below...






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Left: One of the pump installations

The hot water system uses gas fired Rheem Ray Pak domestic hot water service heaters and Grundfos in-line circulating pumps configured into two blocks each with two heater units and two pumps, which, with associated storage tanks, serve a total of 164 unit.

The equipment was only 8 years old when the failure occurred.











Left: The paper-thin metal that that remained in the elbow, where a pinhole leak was revealed

Above, left and right:The bright copper interiors of the eroded pipes. The eroded bend which revealed a similar leak in the pump suction bend was replaced and tested.