Before recommending a salt cell replacement, make sure the cell is actually dead. The most common reason for "failed" salt cells that techs encounter in the field is scale buildup that a proper acid wash would have resolved. That said, cells do wear out — the titanium coating depletes over time — and knowing the difference between a dirty cell and a dead one saves you from callbacks after an unnecessary replacement, and saves your customer from an acid wash that won't fix a genuinely failed cell.
Before touching the cell, confirm:
Perform a complete acid wash as described in the salt cell cleaning guide. After cleaning, run the system for 24 hours and recheck chlorine output at the control board (% output vs actual generation in grams per hour if the system displays it).
A cell that shows 100% output setting but only produces 30% of rated chlorine (confirmed by test kit, not the system readout alone) is typically within 6–12 months of failure. Alert the customer proactively and log it in PoolLens.
| Option | Example | Price Range | Warranty | Notes |
|---|---|---|---|---|
| OEM Hayward | AQR15-CUL (T-15) | $400–600 | 1–3 yr | Full system compatibility guaranteed |
| OEM Pentair | IntelliChlor IC40 | $350–550 | 1–3 yr | IC40 = 40K gal pools |
| Third-Party | CircuPool RJ-45 | $200–350 | 1–2 yr | Compatible with most systems; verify fit |
| Third-Party | Turbocell TC-15 | $180–280 | 1 yr | Widely used in service industry |
Never downsize a cell to save money. An undersized cell running at 100% all the time burns out faster than an appropriately sized cell running at 60–70%. Use these rough guidelines:
After installing a replacement cell, always record the installation date and serial number. Cell warranties are time-based from installation — not from purchase date. A cell sitting on a shelf for 8 months before installation could lose significant warranty coverage.
After installing a new cell:
PoolLens stores cell data per pool so you can flag aging cells proactively, document cleaning history, and arrive at every service call knowing exactly where each account stands.
Open PoolLens Free →A properly maintained salt cell lasts 5–7 years. Cells that are never cleaned, run in high-pH water, or are undersized for their pool may fail in 3–4 years. Regular acid washing significantly extends cell life.
OEM salt cell replacements cost $200–600 depending on the brand and model. Third-party compatible cells cost $100–300 and generally offer comparable performance, though they may void the control board warranty.
Third-party cells (Turbocell, CircuPool, etc.) often fit and function with brand-name control boards. Verify the T-cell rating matches your pool volume and that the connector is compatible before purchasing.
T-cell ratings (T-3, T-9, T-15) indicate chlorine output capacity. T-3 handles pools up to 15,000 gallons, T-9 up to 25,000 gallons, and T-15 up to 40,000 gallons. Match the cell rating to your pool volume.