Water heaters are designed to last only a few years. Even though regulations now require manufacturers to have a certain quality, the vitrification process often remains imperfect and the magnesium anodes only last a few years before being completely ravaged by corrosion.
If you verify your magnesium anode and change it when it's 60% corroded, your water heater is supposed to last many years. However, in the real world, nobody wants to go in a crawled space every year to work on their hot water tank.
Why Corrosion Occurs in the Hot Water Tank
A closed place, with big temperature changes and always in contact with hard water... We couldn't dream of a better place for accelerated corrosion.
Even if water heater manufacturers use some technology to reduce corrosion, they don't want you to keep those for 20 years and more. They know that people don't change the magnesium rod.
How to Completely Stops Corrosion - LONG TERM SOLUTION
We have designed the Corro-Protec anode with only one objective: to stop corrosion for many years without needing any maintenance.
That's what we were able to achieve back in 2012 when the first generation came out. We were able to create this solution using an infinite resource to provide protection: electricity. The Corro-Protec anode uses current to stops corrosion inside the tank.
Corro-Protec has developed an impressed current anode for hot water tanks. Instead of using a sacrificial magnesium anode rod to protect the tank, the Corro-Protec anode is made from titanium and uses current to prevent corrosion.
The Corro-Protec system includes a power supply (rectifier) and a titanium anode rod. Once the rectifier is plugged into a 110V outlet, the titanium anode sends energy into the tank, which completely stops corrosion, reduces hard water stains, and stops the rotten egg smell.
Unlike the magnesium anode rod, the Corro-Protec rod is designed to last over 20 years and doesn't require any maintenance.
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