Your Monthly Maintenance Minute
Thursday, April 4th, 2019Extending the life of your water heater
We’ll call this the maintenance “5-minute”, because you’reprobably going to invest more than a minute flat in draining your water heater-but the good news is that you don’t have to drain it completely as your manualmay suggest to get most of the benefit from draining the tank. Over time, any type of water heater tank willbuild up sediment- which has three harmful effects on your home’s hot watersystem. First, the sediment takes upspace, effectively making your water heater smaller. Second, the sediment can insulate the bottomof the tank in a gas water heater where much of the flame’s heat is absorbedinto the water, or even cover a lower element in an electric water heatercausing a reduction in heating efficiency. Third, the sediment scratches the glass liningof the water heater tank, resulting in exposed metal – which leads to rust andeventual tank failure.
You can extend the life of the tank and increase the efficiencyof the system by simply draining a couple gallons of water off the bottom ofthe tank. First, shut the unit down,either by turning the gas valve to “pilot” or “off”, or flipping off the breakerto an electric unit. Second, turn offthe cold water supply line, usually located on the right side as you face theunit. Attach a garden hose to the drainvalve on the water heater tank, and run it to a drain. Turn on a hot water faucet somewhere in yourhome to allow the water to flow, and then open the drain valve toward thebottom of the tank. Check the color ofthe water that drains- at first it may appear dark, but after just a fewgallons it will become clear. At thatpoint, you can close the drain, and turn off the hot water faucet you hadturned on previously. Turn the coldwater supply back on, turn the power or gas supply back on, and you’re done!
The next time you turn on a hot water faucet, there may be a couple air pockets, so don’t worry if you hear a bit of noise