Gate valves on a main water supply can stick or stop turning

Gate valves can be used on a main water supply, but they are not usually recommended because they can be more difficult to operate and are more prone to failure than other types of valves.

Gate valves are designed to be fully opened or fully closed, and they can provide a good seal when closed. However, when partially open, they can cause turbulence and pressure drops that can lead to water hammer, which is a sudden and potentially damaging surge of water pressure in the pipes. In addition, gate valves can be prone to corrosion and wear over time, which can lead to leaks or failure.

As an alternative to gate valves, ball valves are often recommended for main water supply lines. Ball valves are easier to operate and can be operated at any angle, making them more versatile. They also provide better flow control and are less prone to water hammer than gate valves. Additionally, ball valves are more durable and resistant to wear and corrosion, which can help prevent leaks and failure over time.

Ultimately, the choice of valve type for a main water supply line will depend on various factors, such as local building codes, the specific application, and personal preference. It is recommended to consult with a licensed plumber or building professional for guidance on the best valve options for your specific situation.

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