Why our water is so hard
Most Las Vegas valley water comes from Lake Mead and the Colorado River, which flows through mineral-rich rock. The result is water that leaves white scale on faucets, shower glass — and inside appliances. Southern Nevada water utilities publish hardness in the range typically classified as very hard.
LG refrigerators and ice makers
- Filters clog early. The 6-month reminder is a maximum; many Las Vegas homes need a new filter every 3–4 months. A clogged filter means slow water, small cubes and an overworked inlet valve.
- Inlet valves scale up. The fine screen in the water valve collects minerals; flow drops until the ice maker underfills.
- Ice maker trays develop a mineral crust that makes cubes stick.
What to do: use genuine or certified filters, replace on schedule, and dispense a glass of water after any filter change.
LG washers
- Scale on the heater and drum, and stiff, dingy laundry.
- People add more detergent to compensate — which causes suds (SUD), residue and smell.
What to do: HE detergent at the low line, monthly Tub Clean, and a washer descaler every few months.
LG dishwashers
- White haze on glasses, clogged spray arm nozzles, shorter heater life.
What to do: rinse aid at 3–4 (LG ships at 2), a detergent with a hard-water booster, monthly filter cleaning and a dishwasher cleaner every 1–2 months. See LG dishwasher not cleaning.
Water softeners
A whole-home softener prevents most of these problems. If you have one, LG dishwashers may need less rinse aid — adjust down if you see foam or streaks.
When scale has already done damage
Slow water dispensers, ice makers that underfill, washers with IE errors and dishwashers that no longer clean are all common scale-related repairs. See LG appliance repair services.