What is a likely water issue that can cause a valve to remain closed?

• A. Low pressure at the main source
• B. Water off at the point of connection
• C. High mineral content in water
• D. Ice blockage in pipes

Answer: (B)

A likely water issue that can cause a valve to remain closed is when the water is turned off at the point of connection. This situation prevents any water flow into the system downstream of the valve, effectively keeping it closed because there is no supply to pressurize it and open it. This typically happens in situations where maintenance is occurring or there are repairs needed, necessitating that the water source be shut off.

Low pressure at the main source could contribute to performance issues but would not typically cause a valve to remain in a closed position, as valves are usually designed to operate under a range of pressures. High mineral content in the water can impact the plumbing system or valves over time, but it generally would not immediately cause a valve to stay closed unless it results in significant buildup that physically obstructs the valve operation. Ice blockage in pipes can cause a temporary shutdown, but it also tends to cause pressure and without proper heat or treatment, it is not a common situation under regular operational conditions.