Saltwater Chlorine Generator Conversion

Why this matters

Saltwater conversion is one of the highest-converting upsells in pool service. Customers want lower-maintenance chemistry + softer water-feel. The conversion job runs installed + adds a recurring service relationship. Done wrong, the saltwater pool corrodes equipment + customers blame the contractor. Done right, it's the easiest premium-margin sale on the route.

Pre-conversion survey

Confirm the pool is a candidate before quoting:

Surface materials

• Plaster / pebble: compatible
• Quartz: compatible
• Fiberglass: compatible
• Vinyl liner: compatible BUT use only marine-grade fittings; some old vinyl liners have issues
• Natural stone coping (limestone, travertine): CAN BE damaged by salt + chlorinated saltwater over time; warn customer or seal coping
• Concrete coping: typically fine

Existing equipment compatibility

• Pump: any modern pump compatible
• Filter: any compatible (cartridge / DE / sand)
• Heater: copper heat exchangers can corrode in salt; cupro-nickel or titanium exchangers are saltwater-safe. Check heater model.
• Light niches: stainless steel is OK; cast brass or older galvanized fittings are NOT
• Handrails / ladders: stainless 316 OK; chrome over brass - questionable
• Diving board hardware: inspect; replace with stainless if needed

Electrical

• Salt cell needs a dedicated 120V or 240V circuit (varies by cell model)
• Confirm panel capacity OR plan sub-panel install with customer

If any incompatible material is present, document it + brief the customer in writing before the sale. Repeat: in writing.

Equipment options

Pentair

• IntelliChlor IC20: pools to 20,000 gal
• IC40: pools to 40,000 gal (most common residential install)
• IC60: pools to 60,000 gal
• 7,000 - 10,000 cell hours expected lifespan

Hayward

• AquaRite S3: pools to 25,000 / 40,000 / 60,000 gal (three cell sizes)
• T-Cell-15 (40k gal), T-Cell-9 (25k gal)
• 10,000 cell hours expected lifespan

CircuPool, Pureline, Solaxx: aftermarket budget options; 5,000 - 7,500 hour lifespan

Procedure

Step 1: Drain + balance baseline chemistry

1. Bring pool to standard balance BEFORE adding salt:

• pH 7.4 - 7.6
• Total alkalinity 80 - 120 ppm
• Calcium hardness 200 - 400 ppm
• Chlorine 1 - 3 ppm

1. Document baseline + photograph readings

Step 2: Cell installation (plumbing)

1. Identify location: AFTER filter + heater, last component before return line
2. Cut plumbing per cell flow direction (arrow on cell body)
3. Install unions on both sides for service access
4. Tee in flow switch if not integrated (most modern cells include flow switch)
5. Test for leaks before powering up

Step 3: Cell installation (electrical)

1. Mount power supply per manufacturer (typically wall-mount near equipment)
2. Connect 120V or 240V per cell spec (most residential 120V, 60Hz)
3. Run low-voltage cell cable per spec - DO NOT splice; use full factory cable run
4. Bond power supply enclosure per local code (NEC 680)
5. Confirm GFCI protection on the circuit

Step 4: Add salt

1. Calculate salt requirement: target 3,200 ppm (typical) for the pool volume

• Example: 20,000 gallon pool needs ~535 lbs of salt to reach 3,200 ppm from zero
• Existing pool salt content may not be zero - test first; common residual is 200 - 500 ppm

1. Pool-grade salt only (sodium chloride 99%+, no anti-caking, no iodine)
2. Add salt to deepest part of pool with pump running
3. Brush salt into circulation; do not let it pile on plaster (creates etching)
4. Allow 24 hours for full dissolution

Step 5: Cell startup

1. Confirm flow switch reads water flow
2. Power up cell
3. Set output percentage to 50% initial; adjust over first week
4. Run pump 8 - 12 hours/day initial (more than route customer's prior schedule)

Step 6: Re-balance

1. Check chlorine 24 hours post-startup; target 1 - 3 ppm
2. Adjust cell percentage up or down to maintain
3. Check stabilizer (CYA): salt cells benefit from 60 - 80 ppm CYA (higher than tab-chlorine pools); add if low
4. Re-check pH; salt cells run slightly basic + push pH up over time

Step 7: Customer education

• Salt does NOT evaporate; only water does. Don't add salt unless level drops (test confirms).
• The pool will TASTE slightly salty (3,200 ppm vs ocean 35,000 ppm). Customer expects this.
• Cell replacement: 3 - 7 years depending on use + chemistry; budget for it.
• Stabilizer (CYA) management is more important than with tab chlorine - protects from sun degradation.

References

• Pentair IntelliChlor install + service manual
• Hayward AquaRite installation guide
• NEC 680 (electrical requirements for pools + spas)
• IPSSA Industry Standards
• Manuall internal: Pool Equipment Sizing Reference, Pool Automation Systems Reference