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I Keep Hearing A Banging Sound
From My Water Heater.

What Should I Do?


If you hear banging sounds in your water heater, it is most likely due to metal parts that are expanding and contracting. This can also occur if the inside of your hot water heater is developing a layer of sediment. What happens is that minerals from hard water build up on the inside of your water heater. When the water heats, the minerals actually crystallize and create a cycle. The sediment becomes harder, making the hot water heater difficult to operate. This sediment is commonly referred to as Scale. When scale is present, hot water becomes trapped behind it, and as it boils, it creates steam that builds pressure as it is trapped. If this is left unchecked, the pressure can increase greatly and the water heater may blow. Therefore, it is important to address these issues immediately.

If you regularly maintain your water heater by flushing it and draining out stale water, you can prevent or significantly lower the amount of Scale that forms. Make certain to remove any sediment from the bottom of the water heater as well. Always follow your water heater’s manufacturers instructions before attempting to flush out your water heater.

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