5 Things to Know About Cleaning a Salt Cell With Muriatic Acid

Use a 4:1 water-to-acid soak for 10–15 minutes This mixture dissolves calcium scale fast. Vinegar works but takes much longer and may not remove all buildup.

Always kill power to the cell first Turn off the system before removing the cell. Mix acid into water, never the other way around.

Wear gloves and goggles Muriatic acid is corrosive. Protect your skin and eyes during the entire process.

Rinse thoroughly and use a plastic brush if needed After soaking, rinse the cell well. For heavy scale, gently scrub with a plastic brush—never metal, which can damage the plates.

Check your manual before starting Some cells are self-cleaning, and acid soaking can void the warranty. If yours isn’t, this method works once or twice per season.