How do you know a water heater is going bad?
Learn how to spot the signs of water heater failure. Lack of Hot Water. Is your shower water lukewarm?… Popping or Rumbling Noises. Water heater noises are another common culprit of water heater failure. Cloudy Water. Does your water look cloudy?… Leaking or Faulty Pressure Relief Valve. Leaking Tank Water.