Both saltwater pools and traditional chlorine types have awesome features. If you’re on the fence, you certainly aren’t alone. Which features suit you best? Read on! Saltwater Pools The biggest myth surrounding saltwater pools is that they contain zero chlorine because the water comes from the sea. But the truth may surprise you. Saltwater pools don’t even come close to seawater. In fact, they aren’t even chlorine-free. Saltwater pools use a process called “electrolysis” to produce just enough chlorine to disinfect the water.