To determine if your well check valve is bad, you can perform several tests.
• Look for signs of wear or damage on the outside of the valve.
• Listen for any unusual noises such as hissing or bubbling coming from the system when it’s not in use.
• Inspect all piping and connections to ensure there are no leaks present.
• Test water pressure with a gauge to see if it is lower than normal levels.
If any of these tests indicate that your check valve may be faulty, then it should be replaced immediately by a professional plumber to prevent further damage to your system.