Standard gas line inspections typically require lines to hold three times their working pressure load for at least 30 minutes. So, if the gas line loses approximately 2 psi from a test of 20 psi on the line, the lines are acceptable. You can check the natural gas gauge at your service line or call Atmos Energy to find out more about your current pressure and what your level should be. If the problem isn’t on the gas company’s side, call the professionals at Earl’s Plumbing right away. Signs that your gas pressure is out of normal range include: -Low or yellow flames from gas cooktops -Gas-powered appliances don’t work or barely work -Trouble keeping your heating on -Water takes longer to heat than usual or becomes significantly hotter than usual