Salt water vs chlorine.
Salt isn't chlorine-free — it just generates chlorine differently. Here's what actually changes for an Arizona pool owner.
At-a-glance comparison.
| Spec | Salt system | Traditional chlorine |
|---|---|---|
| Up-front equipment | $1,200–$2,000 cell + control | $0 (uses tabs/liquid) |
| Monthly chemical cost | $25–$45 | $45–$90 |
| Replacement (every 3–7 yrs) | $700–$1,200 cell | — |
| Water feel | Softer, less chemical smell | More noticeable chlorine |
| Skin/eye irritation | Lower | Higher (esp. after dosing) |
| AZ hard water impact | Cell scaling — descale 1–2×/yr | Standard scale management |
| Maintenance complexity | Lower day-to-day | More frequent dosing |
Salt
Steady, low-concentration chlorine generation. Softer feel, lower monthly chem cost, higher upfront equipment.
- Softer feel, less smell
- Lower chemical handling
- Lower monthly chem cost
- Up-front cell + controller
- Cell descaling required in AZ
- Cell replacement every 3–7 yrs
Chlorine
Manual tabs/liquid dosing. Cheapest equipment, more hands-on maintenance, classic feel.
- No special equipment
- Predictable chemistry
- Easy emergency dosing
- Higher monthly chem cost
- More skin/eye irritation
- More handling of raw chemicals
Common questions.
Does salt water still have chlorine?
Yes — a salt cell electrolyzes dissolved salt into chlorine inside the equipment loop. The water feels softer because chlorine is generated continuously at low concentrations instead of dosed in spikes.
Will salt damage my deck or pool equipment?
At swimming-pool salinity (3,000–3,500 ppm — about 1/10th of seawater), risk is low. We still recommend sealing flagstone/travertine and avoiding raw aluminum near the pool. Most modern equipment is salt-rated.
How long does a salt cell last?
3–7 years in Arizona. Hard water shortens cell life — descale every 6–12 months. Replacement cost: $700–$1,200 installed.
We install salt on 8 of 10 new pools.
Lower maintenance, softer feel and lower monthly cost outweigh the up-front cell expense for most homeowners. Stick with chlorine only if you're truly hands-off and prefer absolute simplicity.