Journal · 6 min
Colorado hard water is eating your water heater
Why Front Range tanks and tankless fail early, what an anode actually does, and the maintenance that is cheaper than a basement flood.
Municipal water along the Front Range is drinkable and hard. Hardness leaves scale. Scale is why a ‘12-year’ tank leaks at year eight and why a tankless throws a code after two skipped flushes.
The anode is the sacrificial part people never change
Inside a tank, an anode rod is meant to corrode so the tank doesn’t. In hard, aggressive water it gets eaten. Nobody looks at it. Then the tank pits. Checking an anode on a service visit is unglamorous and it is the difference between a $40 part and a $2,200 swap over new LVP.
Tankless has no anode to hide behind
The exchanger is the wear item. A yearly flush with the right vinegar or solution, through valves that were installed on day one, is the whole game. We build those valves into every install so you are not cutting copper later.
Do you need a softener?
Sometimes. Not always. A softener is a household decision (salt, drain, space). For many homes, a disciplined flush schedule plus a decent anode plan is enough. We’ll say so if a $6,000 water-treatment pitch is not what the heater needed.