While inspecting a large, single-family home, an inspector determined there were two evaporative coolers on the roof. Because it was Phoenix in the summer, he wanted to get the entire exterior as well as the roof and the attic inspected first so he could finish the rest of the inspection in the cool interior of the house. While inspecting the coolers, he observed one cooler was activated and its reservoir was filled with water while the other wasn’t activated and its reservoir was dry. He decided to operate a valve on the water feed line to the deactivated cooler and found that it shut off ...
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