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Site 393

System type: Pumped - differential controller
Installed: 1996
Inspected: 2004
The system is still operating.
Controller and sensor tests were positive. Controller tester indicated that the “freeze” control was defective.
The freeze valve is dripping and metal body components of valve are rusting.
The air vent exhibits a tremendous amount of scale build up and the valve exhaust is clogged with scale buildup.
Exterior insulation that was protected with foil tape is still intact. Other sections that were protected with paint type coatings are degrading.
Roof is in poor condition.