When inspecting a vacuum relief valve on a solar water heating system, where should it typically be located?

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Multiple choice — select the best answer

AInside the storage tank
BAt the lowest point in the system
CAdjacent to the pressure relief valve
DAt the highest point in the potable water system

✓ Correct answer: D. At the highest point in the potable water system Vacuum relief valves should be installed at the highest point of the potable water system to prevent vacuum formation that could collapse piping or tanks during draining.

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When inspecting a vacuum relief valve on a solar water heating system, where should it typically be located?

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