How to Tell If a Pool Is Saltwater or Chlorine

When you're purchasing a home or inspecting a property with a pool, knowing whether it's saltwater or chlorine is essential for maintenance, budgeting, and understanding its impact on your swimming experience. Here’s how to determine which type of pool you're dealing with:

1. Look for a Saltwater Chlorinator

Saltwater pools have a device called a saltwater chlorinator or salt cell. This equipment converts salt into chlorine through a process called electrolysis. Check near the pool equipment area—if you see a unit labeled “saltwater chlorinator,” you’re dealing with a saltwater pool.

2. Test the Water Chemistry

Using a pool water testing kit, you can check the salt levels. Saltwater pools typically have a salinity level of 2,500 to 4,000 ppm (parts per million). If your test reveals significant salt content, the pool is likely saltwater.

3. Feel the Water

Saltwater pools often have softer-feeling water compared to chlorine pools. This is because the salt content mimics the texture of water naturally found in your body, making it gentler on your skin and eyes.

4. Smell the Water

Chlorine pools have a distinct chemical smell, especially if the pool is not properly balanced. Saltwater pools, on the other hand, produce chlorine at lower levels, resulting in less of that harsh odor.

5. Inspect the Pool Surface

Chlorine pools may cause faster wear and tear on surfaces and equipment due to their higher chlorine concentrations. Look for signs of fading or corrosion around metal fittings, ladders, or tiles—this can hint at the pool being chlorine-based.

6. Ask the Current Owner or Pool Technician

If you're visiting a home with a pool, the easiest way to confirm is to ask the owner or their pool maintenance technician. They can provide details about the pool system and maintenance requirements.

7. Check the Maintenance Routine

Saltwater pools usually require adding salt a few times a year and occasionally cleaning the salt cell. Chlorine pools, however, need regular chlorine tablet additions, liquid chlorine, or shock treatments. Reviewing past maintenance records can give clues about the type of pool.

Conclusion

Knowing whether a pool is saltwater or chlorine is crucial for understanding maintenance, costs, and user experience. Saltwater pools are generally more skin-friendly and lower-maintenance but require a higher upfront investment. Chlorine pools are simpler in setup but involve ongoing chemical costs and upkeep. When in doubt, consult a pool professional to ensure you’re prepared to handle the type of pool you’re inheriting.