Water heater popping
The popping you hear from the water heater is caused by sediment build up in the bottom of the tank. This causes the bottom to overheat to get the water to the set temperature. You can prevent this situation by draining water from the water tank (be careful) by connecting a hose to the drain plug. If you do this maintenance routinely, along with changing the zinc anode (look on top of the water heater for a plug you can remove with a wrench), your water heater will last much longer.
You must turn off the water heater and water supply before you perform this maintenance.
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