Angle stops, also known as angle stop valves, do not have a fixed replacement schedule like air filters or smoke detector batteries. Instead, they should be replaced when they show signs of wear, leakage, or failure to operate correctly. However, many plumbing professionals recommend proactively replacing old angle stops every ten to fifteen years, especially if they are the original fixtures installed with the home. Over time, the internal rubber washers can degrade, leading to leaks around the stem when the valve is turned. Additionally, older multi-turn compression valves are prone to seizing or breaking off if they have not been exercised regularly. If you notice any moisture around the valve, difficulty in turning the handle, or if the valve fails to completely stop water flow, it should be replaced immediately. Upgrading to modern quarter-turn ball valve angle stops can improve reliability and ease of use, reducing the likelihood of future emergencies. Regular inspection during routine home maintenance can help identify issues before they cause significant water damage.
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