What does it mean when I hear a rumbling sound coming from the water heater?

Rumbling sounds can be an indication that sediment has built up on the bottom of the water heater. Water can become trapped in this sediment and begin to boil. This means the water heater is not operating efficiently and the sediment isn’t allowing the heat to transfer to the water in the tank. You may try draining a few gallons of water off the bottom of the water heater tank. This is done by attaching a drain hose to the valve at the bottom of the tank. Allow it to drain for about five minutes. Many newer models of water heaters have a new feature that prohibits the buildup of sediment in the tank. If your heater is an older model, it may be cost effective to replace the water heater if the buildup is severe. Contact Benjamin Franklin Plumbing® for membership opportunities in our Ben Franklin Society, for year-round maintenance of your water heater.

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