If they gave trophies to home appliances, water heaters would be winning one every year (and we’re not talking about the obligatory trophies they give to all the kids on the team). Nearly every appliance in your home relies on the water heater. If the sink gets clogged, sure, you might not be able to use your sink for the day. But if something happens to the water heater? The sink, the washer, and the shower are out of commission (unless you like freezing showers).
What we’re trying to say is: You have to take care of your water heater. One way to do that is by flushing the sediments that collect at the bottom of the tank.