PLUMBING GUIDE
How Hard Water Shortens Water Heater Life in Tampa Bay
Hard water is common across the Tampa Bay area, and your water heater feels it first.
What hard water does inside a tank
Hard water carries dissolved minerals such as calcium and magnesium. When water is heated, those minerals settle out as sediment on the bottom of the tank and on electric heating elements. The sediment insulates the water from the heat source, so the heater works harder and parts wear out sooner.
Signs of sediment buildup
- Popping or rumbling sounds while heating
- Hot water that runs out faster than it used to
- Higher energy bills with no change in use
- Cloudy or gritty hot water
How long should a water heater last?
A typical tank water heater lasts roughly 8 to 12 years. Hard water and skipped maintenance can put a unit at the low end of that range. Check the serial number label on your heater; manufacturers usually encode the manufacture date there.
How to make it last longer
Flushing the tank periodically removes sediment before it hardens. The anode rod, a sacrificial metal rod that protects the tank from corrosion, should be checked and replaced when it’s worn. A water softener also reduces scale throughout the plumbing system.
When to replace instead of repair
If the tank itself is leaking, it needs to be replaced; tanks can’t be patched. If an older unit needs an expensive repair, replacement is often the better value, and it’s a good moment to consider whether a tankless unit fits your household.
