A hot water heater may leak for several reasons, ranging from simple loose connections to serious internal damage. According to NorthStar Heating and Cooling, common causes include:
- Loose Fittings and Valves: Leaks often occur at the inlet and outlet connections, the drain valve at the base of the tank, or the temperature-pressure relief (TPR) valve.
- Corrosion: Over time, the tank itself can corrode, which often results in water pooling at the bottom. This is especially common in tanks that are 10 to 15 years old.
- Sediment Buildup: In Calgary homes, mineral deposits from hard water can settle at the bottom of the tank. This sediment can reduce efficiency, cause rumbling noises, and eventually lead to leaks.
- Excessive Pressure: High pressure within the system can cause the pressure relief valve to leak as it attempts to discharge excess stress.
- Failed Components: A failing anode rod or dip tube can also contribute to ongoing leaking issues.
To identify the cause, it is recommended to dry the area and monitor the unit for 30 to 60 minutes to see where drips reappear. If you find a leak, you should immediately shut off the water supply and power before seeking professional repair.
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