Saltwater Pools: 316 Ladders vs Titanium Heaters

 

Why 316 ladder rungs last longer?
316's molybdenum prevents pitting from 4,000ppm salt water. Step covers prevent electrolysis with aluminum frames. Anchor with plastic sleeves to isolate from concrete. Inspect for crevice corrosion annually.

 

When is titanium essential for heaters?
For salt systems over 40,000L. Titanium exchangers resist chloride corrosion at 80°C. Costs 3x more than CuNi but lasts 15+ years. Pair with sacrificial zinc anodes.

 

Galvanic isolation tactics?
Use dielectric unions between dissimilar metals. Install zinc anodes on ladder legs. Bond all metals to single ground point. Monitor voltage differentials monthly (keep <0.5V).

 

Winterizing steps?
Remove ladders – store on PVC racks. Flush heaters with citric acid solution. Cover pools with permeable mesh to prevent debris damage.

 

Corrosion troubleshooting?
White powder on 316 indicates stray current – check grounding. Green stains mean copper corrosion – test water chemistry. Pitting requires passivation with nitric acid gel.