Saltwater pools can corrode metal fixtures if you're not careful

Yes, they can.

Saltwater pools aren’t actually saltwater — they’re low-salt (around 3,000 ppm) and use a chlorine generator. But that salt water is conductive, and the electrolysis process creates chlorine that’s tough on metal. Over time, it eats away at cheap stainless steel, brass, aluminum, and zinc.

The fix isn’t to avoid saltwater pools — it’s to use the right materials. Good pool equipment uses titanium heat exchangers, high-grade stainless (like 316L), or plastic parts. If you’ve got standard brass fixtures or cheaper stainless railings, you’ll eventually see pitting and rust.

Your pool builder should spec corrosion-resistant hardware from the start. If you’re retrofitting, swap out anything that’s showing rust with marine-grade stuff.

Don’t blame the saltwater if you used the same fixtures as a traditional chlorine pool.