11 - CDS 4.8 SV Owner’s Guide
Hard Water Area Map
The hard water map, shown in Figure 1, defines hard water areas in the lower 48 United
States which compromise fluid related components such as hoses, fittings, heaters,
pumps, valves and water-cooled engines. For other countries, hard water area maps can
be obtained from geological societies.
The map shown in Figure 1 is provided for general reference only. Water hardness
in your geographical location should be confirmed by testing.
Figure 1. Hard Water Map of Mainland United States
