How to Change From Chlorine to a Saltwater System Pool?

Switching to a saltwater pool can seem like a big change. Saltwater pools have become a go-to choice for pool owners who want clean, low-maintenance water with a softer feel.

The good news, though? It’s totally possible to convert your chlorine pool to saltwater, and it’s not nearly as complicated as it sounds. In fact, once you understand the steps, the whole process is pretty straightforward.

Let’s talk about how to turn your chlorine pool into a saltwater system, what you’ll need to get started, and a few pro tips to help it go smoothly.

Step 1: Start by Testing and Balancing Your Pool Water

To start, you need to grab a pool test kit or maybe take a sample of your pool water to your local store. This is to make sure your pH, calcium hardness, and alkalinity levels are all in the right range. Balancing your water is really important to a successful conversion, and it helps protect your new saltwater equipment, too.

Step 2: Choose a Saltwater Chlorination System

This is the heart of your saltwater setup. A saltwater chlorinator uses electrolysis to turn salt into chlorine (yes—saltwater pools still use chlorine, it’s just generated on-site instead of added manually).

There are a few trusted brands to choose from, like Purechlor, Pentair, or Hayward, and you’ll want to pick a model that matches the size of your pool. (If you’re not sure how many gallons are in your pool, be sure to take a look at our blog post here.) You can also get a saltwater pool conversion kit, which usually includes the chlorinator and everything needed for installation.

Step 3: Power Down Your Pool Equipment

Before you start installing anything, you really need to turn off your pump, filter, and heater. You’ll want everything off while you get set up. This helps with a safer and easier setup of the new system.

Step 4: Drain and Refill (Optional)

It’s important to note that most pools don’t need to be drained to switch from chlorine to saltwater. However, if your water is overloaded with stabilizers or other chemicals, it might be worth doing a partial drain and refill. Not sure? A quick test can tell you. You can test it with a kit or take it to a pool supply store.

Step 5: Add Pool Salt

Here comes the magic ingredient, which is salt. You can’t use regular table salt, though. You need to add pool-grade salt directly to your pool. Your chlorinator manual will tell you the exact amount, but just in case, here is a pool salt calculator to help you out. 

Pro tip: Put the salt evenly across the pool, then run the pump to help it dissolve fully. This usually takes about 24 hours.

Step 6: Install the Saltwater Chlorinator

Follow the manufacturer’s directions carefully, but it’s usually installed after the filter in your plumbing system. If you’re unsure or not very handy, this might be a good time to call in a pool professional.

Step 7: Turn Everything Back On

Once everything has been installed, you need to turn all of the pool equipment back on. This means your pump, filter, and chlorinator. Your new system will start converting salt into chlorine automatically. Then you should be all set.

Step 8: Monitor and Adjust

It’s still important to keep an eye on your salt levels and chlorine output. This is especially true in the first few days. You can use test strips or the chlorinator’s control panel to fine-tune everything. Once it's dialed in, you’ll find that saltwater pools are pretty easy to maintain.

Making the change from chlorine to saltwater doesn’t have to be an overwhelming thing. With the right gear (like a reliable saltwater pool conversion kit) and a little prep, you’ll be floating in saltier, more gentle water in no time.

Need Help Finding the Right Saltwater Chlorinator?

We’ve got top-rated systems from brands you trust, and expert advice if you’re not sure which one fits your pool.