The answer to 'why is my pressure regulator leaking water' is that a leaking pressure regulator is often caused by a worn-out diaphragm or seal inside the regulator. Over time, these components can become damaged or deteriorate, leading to water leakage. This is a common issue that can occur in both residential and commercial plumbing systems.
Some common symptoms of a leaking pressure regulator include water dripping or spraying from the regulator, low water pressure throughout the home, or a constant trickle of water from the regulator. In some cases, the leak may be slow and difficult to detect, so it's important to regularly inspect your pressure regulator for any signs of wear or damage.