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Las Vegas Valley Water District

Water Filters and Softeners

Area tap water is well within the standards set by the Safe Drinking Water Act, so it's not necessary to buy a home water treatment system to ensure the safety of your drinking water.

If you want to improve aesthetic qualities of your water such as taste and hardness, you may want to purchase a home treatment system.

Our drinking water is treated through a multi-step process that includes chlorination. The chlorine helps protect the water until it reaches your tap. There are a variety of inexpensive filter systems to remove chlorine from your drinking water. If you do not like the hardness of the valley's water supply, you can invest in a softening system.

Types of Home Water Treatment Systems
  Description Pros Cons

Activated Carbon Filters

 

 

Activated carbon filters attract and hold certain chemicals as water passes through them. They are available in carafe units, faucet-mounted filters and models mounted beneath the sink.

Reduces chlorine odor and taste; can be inexpensive

 

 

Doesn't remove minerals associated with hardness; can require frequent filter changes; does not remove microbes

 

Reverse-Osmosis Filters

 

 

 

These systems use both a traditional (usually carbon) filter and a cellophane-like membrane to remove most organic and inorganic compounds. This is the only type of filter that will remove calcium and magnesium, the minerals that cause hard water.

Removes minerals that cause hardness; highly effective

 

 

 

More expensive; may require a plumber; requires more storage space; many units waste water

Water Softeners

 

 

Devices used to exchange calcium and magnesium for "softer" minerals—usually sodium or potassium.

 

Eliminates chalky residue; may enhance dishwasher and washing machine performance; reduces water spots

Very expensive; higher maintenance; adds salt to drinking water; can be harmful to health and the environment

 

Many water filters feature a certification by NSF International, a not-for-profit organization that tests water treatment devices. While not a guarantee, the NSF label is a good indicator that the product lives up to its claims. You may want to be cautious if the product is not NSF-certified.

The Southern Nevada Water Authority (SNWA) offers consumers more detailed information about various types of treatment products. Request a packet by calling (702) 258-3930 or request a copy online from SNWA.

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