Pentair IntelliChlor PLUS40 40K Salt Cell Bundle, 523735-EC 520556

⚙️ Key specs

• 🏊 Pool size rating: up to 40,000 gallons
• ⚡ Voltage: 120/240V compatible
• 🧂 Salt range: ~3000–4000 ppm (ideal zone)
• 🧪 Cell material: titanium plates (self-cleaning reverse polarity)
• 🔁 Cleaning: automatic scaling reduction cycle
• 📶 Automation: works with IntelliCenter / EasyTouch / IntelliTouch systems

🧠 How it works (simple flow)

• 🧂 Salt in water
  ↓
• ⚡ Electrical current passes through cell
  ↓
• 🧪 Chlorine gas forms and dissolves into water
  ↓
• 🏊 Pool stays sanitized automatically

👍 Key benefits

• ✔️ No daily chlorine dosing
• ✔️ Stable water chemistry when tuned correctly
• ✔️ Lower long-term chemical handling
• ✔️ Integrates into Pentair automation systems
• ✔️ Self-cleaning reduces calcium buildup

👎 Real-world issues (important)

Based on field reports + user feedback:

• ⚠️ Sensor drift / salt reading errors (common complaint)
• ⚠️ “Low salt” warnings even when salt is fine
• ⚠️ Cell performance drops after scaling or age
• ⚠️ Needs correct flow + pump scheduling or it shuts off
• ⚠️ Not truly maintenance-free (still needs cleaning/calibration)