In case the bottom of your water heater matches with sludge, the heater will not function at peak operation. The buildup also causes the water at the base of the tank to superb heat and turn into steam, leading to explosions that blast small quantities of sediment off the bottom of the tank. To clean the sediment of a water heater, abide by these steps! Unscrew the cold water supply line near the top of the water heater and remove the nipple screwed into the cold water port. Make sure to switch off the power to the water heater and the cold water inlet valve before you begin any repairs.
Pour on a citric acid-based cleaner to the open hole and then wait about 8 hours for the acid to dissolve the minerals at the bottom of the tank. The uric Mag Erad acid-based cleaner works well, but it can be difficult to find a local plumbing supply stores. Connect the garden hose to the drain valve located in the bottom of the water heater and then run the hose out to the garden. Open the drain valve, then reconnect the water supply line, then turn on the cold water source to the water heater. The muddy water and sediment which comes out from the end of the hose will surprise you.
When the water runs clear, close the drain valve and remove the hose. Apart from being an incubator for bacteria, sediments in the base of the tank diminish the efficacy of a gas water heater and may cause it to rumble like a freight train. Bleed air from the system by turning on the warm farthest water tap from the water heater. When water runs out of this faucet, then turn off it and repeat this process at other taps through the house. Turn the power to the water heater back on. , you will be in warm water today.