2-Pack Zinc Anode Weight – Anti-Electrolysis Sacrificial Anode – Galvanic Ano…
Sacrificial anodes don’t rust, but they deteriorate. Depending on your pool water’s pH, the sacrificial anode can last for several pool seasons. You’ll need to replace the sacrificial anode when reduces to half its original size.
Zinc Anode for Saltwater Pools | AntiElectrolysis Galvanic Protection
Together with equipotential and pool water bonding, this galvanic anode will aid in preventing corrosion. Not only that, but this zinc anode weight can also prevent plaster discoloration. Adding one sacrificial anode will prolong the life of the other.