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Saltwater Pool Maintenance: What Most Owners Don’t Expect

Landscape photo of an inground vinyl liner pool in a backyard. The pool is surrounded by a light-gray concrete patio, upon which sits four black and white beach chairs parallel with the length closest to the grass in the background. Beyond the grass in the background are trees lining the edge of this yard and a neighboring yard on the right. This neighboring yard features a black metal fence stretching along the top right corner of the image. The photo was taken from atop a raised wood deck behind the pool in the foreground. The railing and floor of this deck are visible in the bottom right corner of the image.

So you’re one of many people who don’t like the feel of chlorinated water on their skin. Totally understandable. You’ve probably been researching different pool water chlorine alternatives and are curious about salt.

Saltwater pools have grown in popularity over the past decade, and many homeowners choose them as a “chlorine alternative” for their inground pool (more on those quotation marks later). Why? Because salt systems promise softer-feeling water and automatic sanitation through a device known as a salt chlorine generator.

However, there are a few misconceptions about saltwater pools, including that they are maintenance-free. The truth is, saltwater pools still require regular pool maintenance and water chemistry management, like all pools do.

If you own or are considering a swimming pool with a salt chlorine generator, it’s important that you understand what saltwater pool maintenance entails.

Royal Pools G2 Landscaping builds and installs inground fiberglass pools and vinyl liner pools throughout Northwest Indiana and South Chicagoland. Many of these pools feature salt chlorine generators. Pool maintenance and upkeep can be a lot to understand. Luckily, we love educating pool owners and prospects alike. So, what should you know about saltwater pool maintenance? Let’s dive in!

Saltwater Pools Are Chlorine-Based

So, about those quotation marks around chlorine alternative up above. You may be under the impression that a saltwater pool is chlorine-free. That is one of those common misconceptions we mentioned earlier.

Brace yourself, folks. In reality, salt chlorine generators produce chlorine automatically through a process called electrolysis. Salt dissolved in the pool water passes through the generator cell, where it is converted into chlorine. The chlorine then leaves the generator, heading back into the pool to begin sanitizing.

What does this mean for you? If you are looking for a chlorine-free sanitizer, salt is not the best option for you. Saltwater pools still rely on self-generated chlorine to keep the water clean and safe. The difference between using a salt chlorine generator and traditional chlorine (shock and tabs added manually) is that the generator adds chlorine to the pool automatically.

For this reason, water chemistry must still be regularly tested and adjusted.

Water Chemistry Still Needs Regular Attention

Photo of two hands over a pool. One hand is holding a bottle of pool water test strips, and one hand holding an individual strip.

A salt cell generator produces chlorine. It does not balance your pool. You will still have to monitor and adjust your pool chemicals when needed.

This includes:

  • Chlorine levels
  • pH balance
  • Total alkalinity
  • Calcium hardness
  • Cyanuric acid CYA (stabilizer) levels
  • Salt levels (in a saltwater pool)

The chlorine produced by saltwater pools tends to be high in pH, meaning you will periodically have to add muriatic acid or a pH decreaser.

Pro-tip – Balanced pool water chemistry:

  • Chlorine/Bromine: 1 – 3 PPM
  • pH: 7.2 – 7.8 (7.2 – 7.4 in fiberglass pools)
  • Alkalinity: 80 – 120 PPM
  • Calcium Hardness: 175 – 350 PPM (under 120 PPM in fiberglass pools)
  • Cyanuric Acid: 0 – 50 PPM
  • Salt levels: 2700 – 3400 PPM (exact range may vary depending on the brand of salt chlorine generator)

Salt Chlorine Generators Require Cleaning

Landscape photo taken from above a white cylindrical tube. A hand grips around the tube out of focus at the bottom of the image. Beyond the hand is grass in the bottom right corner and concrete in the rest of the background. At the bottom of the tube are plastic lines that run top to bottom and left to right.

The salt cell inside the generator is where the magic happens. After a while of transforming salt into chlorine, calcium deposits and mineral scale may accumulate on the walls within the cell.

This buildup reduces chlorine-generation efficiency and may even prevent the generator from producing chlorine if left unattended.

To maintain the best performance, salt chlorine generators should be inspected and cleaned every 2-3 months. In many cases, this involves removing the cell and rinsing it with a mild acid solution to dissolve calcium buildup (5 parts water + 1 part muriatic acid. Always add water first).

Neglecting this step can shorten the lifespan of the generator and lead to costly replacements. If you have a high number of weekly swimmers, it is recommended to check and clean your salt cell once a month.

Salt Cells Eventually Wear Out

Unlike traditional chemical feeders, salt chlorine generators feature electronic components and metal plates that gradually wear out after years of use.

Typically, most salt cells will last anywhere between 3 and 5 years, depending on usage and water chemistry.

When the salt chlorine generator reaches the end of its lifespan, you must replace it with a new one. Replacement cells can cost several hundred dollars and are an important factor to consider when evaluating the cost of long-term pool ownership.

Salt Can Affect Pool Equipment and Surroundings

Saltwater is more conductive than traditional chlorinated water, making saltwater pools susceptible to corrosion in certain situations.

Metal components, such as handrails, ladders, and pool lights may be vulnerable to corrosion if the pool water chemistry is not balanced.

Maintaining the proper salt level and balanced water chemistry will minimize these risks.

RPG2 recommends using a sealant and/or metal coating materials to prevent corrosion of your metal surfaces. Products such as Rustoleum, galvanized spray, and other types of anti-corrosion and rust-inhibiting products can help protect your pool equipment.

Consider asking your pool contractor or local pool service company about using a sacrificial anode. A sacrificial anode is a piece of metal that is plumbed in-line with the rest of your pool equipment and is designed to rust and corrode before the attached metal and metal in the pool water, “sacrificing” itself to help the pool’s metallic surfaces last longer. Pretty cool, right?

Conclusion

Saltwater pools are a great option for homeowners seeking an automated sanitation system and a softer swimming experience. They are not, however, a maintenance-free pool.

Proper pool maintenance, regular water chemistry testing, and timely cleaning of the salt chlorine generator will ensure your salt chlorine generator keeps your pool functional, clean, clear, and swimmable.

We also recommend working with an experienced pool service company to guarantee your saltwater system operates efficiently, protects your equipment, and extends the life of your pool.

Thinking about a cleaning and chemical maintenance plan for the 2026 swim season? Click here to get a free quote.

Check out the articles below for more information about saltwater pools, or dive into our learning hub for more educational content on all things swimming pools. Thank you for reading, and have a great day.

Five Problems With Pool Salt Chlorine Generators

How To Maintain a Salt Water Pool

Written by Logan Edgemon