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

Use muriatic acid, not vinegar A diluted muriatic acid soak is the proven way to dissolve calcium scale without damaging the plates. Vinegar is too weak for most pool scale — you would be soaking for hours.

Mix acid into water, never the reverse Use a plastic bucket (never metal) and mix one part muriatic acid with four parts water. Always add acid to water to avoid a dangerous splash.

Soak for 10–15 minutes, then rinse thoroughly Submerge the cell for 10–15 minutes, then rinse it with a hose before reinstalling. Wear gloves and eye protection — this is strong stuff.

Prevent scaling to avoid frequent cleaning Keep your pH balanced between 7.2 and 7.6, and check the cell every few months. If you see white crust forming, clean it before the flow sensor trips.