Calculate exactly how much pool salt you need for your saltwater chlorine generator.
of pool salt needed
Use high-purity pool salt (sodium chloride) with 99%+ purity. Ideally, choose evaporated or solar salt specifically labeled for swimming pools.
- ✅ Best: Pool-grade evaporated salt, solar salt crystals.
- ⚠️ Acceptable: Water softener salt pellets (if 99%+ pure).
- ❌ Avoid: Rock salt, iodized table salt, salt with anti-caking agents.
- Pour around the perimeter: Distribute evenly around the pool’s edge.
- Brush thoroughly: Do not let salt sit undissolved on the floor (prevents staining).
- Run the pump: Keep circulation running for at least 24 hours.
- Avoid skimmer: Never add salt directly to the skimmer.
Different manufacturers specify different ideal salinity ranges:
- Hayward AquaRite: 2,700 – 3,400 ppm (ideal 3,200)
- Pentair IntelliChlor: 3,000 – 4,500 ppm
- Jandy AquaPure: 3,000 – 3,500 ppm
⚠️ Note: Exceeding maximum salinity can damage the salt cell.
How Much Salt Add to Your Pool
Follow these four simple steps for perfect results every time.
Pool Salt Calculator FAQs
Salt levels naturally drop due to heavy rain dilution, water splash-out, backwashing your filter, leaks, or draining the pool. Salt doesn’t evaporate — only water does. So if you’re topping off the pool frequently due to evaporation, your salt level shouldn’t change significantly. However, physical water loss (splash-out, leaks, filter backwashing) removes salt and requires replenishment.
Always use 99%+ pure, non-iodized, granulated pool salt specifically designed for salt chlorine generators. Avoid table salt, rock salt, or water softener salt — these contain impurities and anti-caking agents that can stain your pool, damage your salt cell, and reduce chlorine production efficiency. Look for “pool salt” or “solar salt” labeled for swimming pool use.
Test at least once a month during swimming season, and always test after major rainstorms, significant splash-out events, or any time you’ve added substantial fresh water. Most salt chlorine generators also display a salt reading — cross-reference this with a manual test kit quarterly for accuracy.
Yes. Salt levels significantly above your generator’s recommended range can damage the salt cell, corrode metal components, and create a salty taste. If you accidentally over-salt, the only remedy is partial draining and dilution — which our calculator above will guide you through automatically.