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

When inspecting a vacuum relief valve on a

Multiple choice — select the best answer

AAt the lowest point in the system
BAdjacent to the pressure relief valve
CInside the storage tank
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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