Saltwater pool conversion done right across the WNC mountains — salt chlorine generator sizing, NEC 680 bonding, sacrificial zinc-anode protection, and finish-compatible resurfacing so salt never quietly etches your plaster, stone coping, or heater. We convert existing gunite pools in Hendersonville, Asheville, Brevard, Lake Lure, Tryon, and Waynesville — and we pair the swap with the right finish instead of bolting a cell onto a tired pool.
A renovation specialist has your request. We'll reach out within 24 business hours — typically sooner. If your pool is actively losing water or has an urgent leak, call (828) 555-0142 for same-day help.
A saltwater pool is still a chlorine pool. The difference is where the chlorine comes from. Instead of you adding tablets or liquid, a salt chlorine generator (SCG) passes the water through an electrolytic cell that splits dissolved salt into chlorine on-site, continuously, then lets it recombine back into salt — so the same salt is used over and over. You dissolve pool-grade salt to roughly 3,000 ppm, about one-tenth the salinity of seawater, low enough that most swimmers can't taste it. The pump, filter, and plumbing you already have usually stay; the conversion adds the cell, a flow switch, and a power center wired to NEC Article 680.
Conversion makes sense when you're tired of buying, storing, and handling chlorine; when chlorine smell and bleached swimsuits bother the household; or when a vacation rental needs clean, low-odor water with less hands-on dosing between guests. It's also a natural add-on during a bigger project — a dated-pool remodel or a variable-speed equipment upgrade — because the equipment pad is already open. What it is not is a chemistry fix: salt water won't save a failing finish or a leaking shell, and bolting a cell onto a 20-year-old plaster interior just accelerates its decline. That's why we scope the finish and the metal before we ever quote the generator.
The single most important number on a conversion is cell sizing. A generator rated to 1.5–2× pool volume can hold sanitizer through an August heat load with bathers in the water; one sized to exactly the pool's gallons will fall behind on the hottest weeks and leave you back-dosing chlorine — the exact chore you converted to avoid. We size to the high side for the warmer, sun-exposed pools in the Tryon thermal belt and lower Henderson County, and account for the shorter swim season at elevation in Haywood County.
A standard inground saltwater conversion runs $1,500–$2,500 installed, with the salt chlorine generator making up 50–75% of the price. Larger and estate pools need a higher-output cell; the smartest spend is bundling the conversion into a resurface so you pay for one drain-down and one mobilization.
For context on the range: a straightforward 15,000-gallon residential pool in Asheville with a sound quartz interior and a compatible heater is a near-textbook conversion at the low end. A 35,000-gallon estate pool near Lake Lure with a long return run, a commercial-rated cell, and a new circuit pulled to the pad sits at the top. Every quote is line-itemed — generator, electrical, salt, zinc anode, permit — so you can see exactly what the cell costs versus the install. To model your combination against a resurface or equipment upgrade, run the resurfacing cost calculator or read the full WNC pool renovation cost guide.
We measure the pool's gallons, then size the salt chlorine generator (SCG) to 1.5–2× pool volume per manufacturer spec — undersizing is the most common reason a conversion can't hold chlorine in July. We inspect the interior finish, coping stone, and heater for salt compatibility, and check the NEC Article 680 bonding grid and grounding before any salt touches the water. Free assessment, detailed scope in writing.
Salt is harder on aging plaster, soft natural stone, and older heater components. If the interior is past its service life, we recommend pairing the conversion with a resurface to an ANSI/APSP/ICC/NPC-12-rated quartz or pebble finish. We install a sacrificial zinc anode on the bonding wire so it corrodes instead of your ladders, rails, light niche, and heater heat-exchanger — the single cheapest insurance on a salt pool.
The salt cell mounts last in the return line — after the filter and heater — with a flow switch so it can't fire dry. The power center and any new circuit are wired by licensed electrical scope to NEC Article 680, and we pull the county electrical permit. We can integrate the SCG with Pentair IntelliCenter, Hayward OmniLogic, or Jandy iAquaLink automation if you want phone control of output.
We add pool-grade solar salt to roughly 3,000 ppm (about one-tenth the salinity of seawater — most swimmers can't taste it) and balance the water to a neutral LSI saturation index per PHTA/CPO guidance, including cyanuric-acid stabilizer to protect the generated chlorine from WNC's summer UV. Salt fully dissolves over 24 hours with the pump running before the cell is switched on.
We power on the SCG, set the output percentage to your bather load and volume, and verify it is producing free chlorine and reading salt correctly. On a brand-new interior finish the controlled National Plasterers Council start-up runs first — the cell stays off until the plaster's critical early water-chemistry window is complete, so salt and high pH never etch a fresh surface.
You get a written run plan: target output by season, monthly cell-inspection routine, and a freeze-thaw winterization procedure built for mountain elevations — the cell and flow switch come out before a hard freeze. We document the salt level, LSI, and cell hours so the next service call starts from real numbers, not guesswork.
Every conversion follows the same order, whether it's a backyard pool in Brevard or an amenity pool on a board's budget cycle. Sizing and metal protection come before any equipment goes on the pad, and on a brand-new interior the ANSI/APSP/ICC/NPC-12 plaster start-up always runs before the cell is energized.
Electrical is licensed scope. Salt water and stray current are exactly the conditions NEC Article 680 bonding exists to control, and we pull county permits and wire to code under NC contractor licensing rather than jumping a wire and hoping. Want phone control? We integrate the generator with the same automation we install during an equipment upgrade.
We size and install the salt chlorine generators that have the parts and service support to last: Pentair IntelliChlor, Hayward AquaRite and AquaRite S3, Jandy TruClear, and CircuPool systems. The cell is the wear part — it's a stack of coated titanium plates that slowly depletes — so we match the generator to a brand you can get replacement turbo cells for locally, and we rate it to 1.5–2× pool volume rather than the bare minimum. Where you want app control and scheduling, the SCG ties into Pentair IntelliCenter, Hayward OmniLogic, or Jandy iAquaLink automation alongside a DOE-compliant variable-speed pump.
Finish compatibility is where conversions go wrong. Salt at swimming concentration is mild, but over years it is harder on aging white marcite plaster, soft natural-stone coping like some travertine and limestone, and the copper and steel in older heat-exchangers and fittings. Modern quartz aggregate (SGM Diamond Brite, CL Industries Krystalkrete) and exposed pebble (PebbleTec, StoneScapes) interiors are salt-friendly and what we recommend when a resurface is on the table — they also carry 10–20+ year service lives that justify converting at the same time. For the coping and deck, we seal porous stone and re-detail the expansion joint and drainage during a tile and coping or deck renovation so salt-laden splash-out drains away from the stone instead of wicking into it.
The cheapest protection on the whole system is a sacrificial zinc anode wired into the bonding grid. Zinc is more reactive than the steel, copper, and stainless in your ladders, rails, light niche, and heater, so it corrodes first and gets replaced for a few hundred dollars instead of your equipment failing. It is standard on every conversion we do — leaving it off to save $150–$400 is how owners end up replacing a heat-exchanger years early.
Two things make a Western North Carolina conversion different from a flatland Florida one: freeze-thaw and access. A salt cell and its flow switch hold water, and water that freezes inside a cell housing cracks it — an expensive lesson in Waynesville, Maggie Valley, Cashiers, and anywhere above about 3,000 feet where hard freezes are routine. Our seasonal handoff pulls the cell before the first hard freeze and stores it indoors, and we drain the pump and plumbing the same way we would on any pool we winterize. The generator also stops producing chlorine below roughly 55–60°F, so the shorter high-elevation swim season means the cell simply idles in the cold months — that's expected, not a fault.
Mountain access shapes the schedule and the cost. Many of the pools we convert sit on steep, graded lots in the Brevard highlands or the Lake Lure gorge where the equipment pad is a hike from the driveway and a new electrical run is longer than the suburban norm — which is exactly why bundling the conversion with a resurface or equipment upgrade on a single mobilization saves real money. Energy fits in here too: most owners convert during the same project that retires a single-speed pump for a variable-speed unit now required under the U.S. DOE dedicated-purpose pool-pump standard, knocking the pad's electrical bill down at the same time — the core of our high-energy-bill fixes.
For commercial pools — HOA amenity pools, inns, and clubs — saltwater is permitted public-pool work. It falls under NC rule 15A NCAC 18A .2500 with VGBA anti-entrapment drains and PHTA-level CPO water management, and we sequence it around board approvals and the off-season the same way we run a full HOA and community pool renovation.
Conversion is rarely a pool's only need. These are the services it most often bundles with — and the areas we run them across.
We'll size the generator to your pool, check the finish, coping, and heater for salt compatibility, and quote it line by line — generator, electrical, salt, zinc anode, permit. Free on-site assessment anywhere across Western North Carolina. No pressure, no up-sell.
