Whirlpool WHES40 Installation And Operation Manual page 2

rated salt efficiency is measured by laboratory tests described in NSF/ANSI Standard 44. These tests
represent the maximum possible efficiency that the system can achieve. Operational efficiency is the
actual efficiency after the system has been installed. It is typically less than the rated efficiency, due to
individual application factors including water hardness, water usage, and other contaminants that
reduce a softener's capacity.
Model WHES40 Model WHES44
Model Code LL40 LL44
Packing List
Bypass valve, Drain Hose, Clips, installation adapters, Hose Clamps, Adapter Elbow, Grommet, 0-rings
, Water Hardness Test Strip
Water Conditioning Information
IRON
Iron in water can cause stains on clothing and plumbing fixtures. It can negatively affect the taste of
food, drinking water, and other beverages. Iron in water is measured in parts per million (ppm). The
total* ppm of iron, and type or types*, is determined by chemical analysis. Four different types of iron in
water are:
Ferrous (clear water) iron
Ferric (red water) iron
Bacterial and organically bound iron
Colloidal and inorganically bound iron (ferrous or ferric)
Ferrous (clear water) iron is soluble and dissolves in water. This water softener will reduce moderate
amounts of this type of iron (see specifications).** Ferrous (clear water) iron is usually detected by
taking a sample of water in a clear bottle or glass. Immediately after taking, the sample is clear. As the
water sample stands, it gradually clouds and turns slightly yellow or brown as air oxidizes the iron. This
usually occurs in 15 to 30 minutes.
When using the softener to reduce Ferrous (clear water) iron, add 5 grains to the hardness setting for
every I ppm of Ferrous (clear water) iron. See "Set Water Hardness Number" section.