The answer to 'when to replace pressure regulator' is that you should replace your home's pressure regulator every 5-10 years or if it is not functioning properly. Pressure regulators are important devices that control the water pressure entering your home, preventing damage to plumbing fixtures and appliances. Over time, the internal components can wear out, causing the regulator to fail and allowing dangerously high water pressure to enter your home.
Signs it's time to replace your pressure regulator include fluctuating or inconsistent water pressure, water leaks, or appliances that are not working properly due to high water pressure. If you notice any of these issues, it's best to have a licensed plumber inspect your regulator and replace it if needed. Replacing the regulator is a relatively simple and affordable repair that can save you from costly water damage down the road.