If you have a salt water pool or are converting your pool to salt, you should consider installing the Pool Tool 2″ clamp style inline zinc anode to your existing pool equipment.
The inline zinc anode is attached to the bonding wire thereby protecting all metal parts against the effects of galvanic corrosion. Protect heaters, pool lights, and rails from damage due to galvanic corrosion. 4 feet of #8 copper bonding wire & clamps are included.
The Zinc Anodes erode before all other metals in the water, thus sacrificing itself and protecting all other metal parts from erosion. Also helps prevent plaster discoloration, heater damage, and black stains.
A must for saltwater pools!
How it Works
The in-line zinc anode is attached to the bonding wire, thereby protecting all metal parts(heaters,lights,rails,etc.) from galvanic corrosion. Zinc anodes will sacrifice themselves and corrode before all other metals in the pool. Zinc anodes need to be replaced approximately every 4-5 years. The anode only inside the 104-D can be replaced for $49.99
Reasons for using Zinc Anodes in chlorine-generated salt water pools
Any time you have different metals (copper, stainless steel, etc.) in a salt water pool, you create a battery. Some amount of current flows between the metals. The electrons that make up the current are supplied by one of the metals, giving up bits of itself in the form of metal ions to the pool water. This is called galvanic corrosion. Galvanic corrosion causes plaster discoloration and metal erosion. The best way to inhibit the effect of galvanic corrosion is to use a zinc anode. Zinc is a metal that gives up its metal ions faster than other metals in the pool. In other words, the zinc anode will erode instead of other metals (pool light, rails, heater, light niche, ladder, etc.). The zinc ions will not discolor the pool plaster. The zinc anode should be replaced after half of it has eroded. This takes approximately 3 years