How often do I add salt to a water softener in Las Vegas?

For most households, about once a month. A family of four in the valley uses a 40 lb bag roughly every three to four weeks.

Is potassium better than salt for a softener?

It adds potassium instead of sodium to the water, which some people prefer. It costs more per bag and more is needed for the same softening.

Why is the salt in my tank not going down?

Most often a salt bridge: a crust above the water that the softener can't dissolve. Press down with a broom handle to check.

Softener Salt in Las Vegas – Which Bag to Buy and How Many

Salt a year for your household

Living alone

Las Vegas Valley: 24,000-grain · 4 bags of salt a year
Henderson: 24,000-grain · 4 bags of salt a year
Boulder City: 24,000-grain · 4 bags of salt a year

Two people

Las Vegas Valley: 24,000-grain · 7 bags of salt a year
Henderson: 24,000-grain · 8 bags of salt a year
Boulder City: 24,000-grain · 7 bags of salt a year

Three people

Las Vegas Valley: 32,000-grain · 10 bags of salt a year
Henderson: 32,000-grain · 12 bags of salt a year
Boulder City: 32,000-grain · 11 bags of salt a year

Family of four

Las Vegas Valley: 40,000-grain · 14 bags of salt a year
Henderson: 40,000-grain · 15 bags of salt a year
Boulder City: 40,000-grain · 14 bags of salt a year

Five people

Las Vegas Valley: 48,000-grain · 17 bags of salt a year
Henderson: 48,000-grain · 19 bags of salt a year
Boulder City: 48,000-grain · 18 bags of salt a year

Six or more

Las Vegas Valley: 64,000-grain · 20 bags of salt a year
Henderson: 64,000-grain · 23 bags of salt a year
Boulder City: 64,000-grain · 22 bags of salt a year

Reading the bag

Softener salt is sold by kind, and the kind is printed on the bag:

Pellets (often “evaporated” or “high purity”): pressed salt that dissolves evenly. The safe default for most brine tanks.
Crystals (often “solar”): coarse natural crystals. Some two-tank or older systems ask for them.
Potassium chloride: an alternative to sodium chloride, for households cutting sodium.
Rust or iron formulas: salt with additives for iron in well water. Valley city water rarely needs them.

Whichever you choose, follow your softener’s manual if it names one.

How much to buy at once

The cards above show bags a year for each household. Divided by twelve, that’s your monthly need. You can buy two or three months at a time; store it dry, off the garage floor.

Keeping the brine tank healthy

Fill level: keep the salt above the water line, at least a third of the way up the tank.
Crusts: a hard bridge across the tank stops brine forming. Break it gently.
Sludge: a mushy layer at the bottom means impure salt or a long time between cleanings. Scoop it out and rinse the tank once a year.

Salt and sodium

Each recharge leaves a little extra sodium in the softened water. If you’re watching sodium, potassium chloride or a reverse osmosis tap for drinking water are the usual answers.

Questions we get asked

How often do I add salt to a water softener in Las Vegas?: For most households, about once a month. A family of four in the valley uses a 40 lb bag roughly every three to four weeks.
Is potassium better than salt for a softener?: It adds potassium instead of sodium to the water, which some people prefer. It costs more per bag and more is needed for the same softening.
Why is the salt in my tank not going down?: Most often a salt bridge: a crust above the water that the softener can't dissolve. Press down with a broom handle to check.