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Water quality impacts equipment performance and maintenance – not to mention the taste of beverages and foods. No matter what role you hold in the foodservice industry, you’ll find answers to your water quality issues through these collected resources.

Converter for hardness of water
Hardness of water is a measure for the content of calcium and magnesium in water. The small contribution of magnesium usually is expressed as calcium as in the degrees of hardness (at the top) and the concentrations of Ca2+, CaO and CaCO3 (at the bottom). Unfortunately, the classification of the degrees of hardness to water quality (soft, slightly hard, hard, very hard) is different in many countries.

Hard Water Hardness Calcium Magnesium Water Corrosion Mineral Scale
Water described as "hard" is high in dissolved minerals, specifically calcium and magnesium. Hard water is not a health risk, but a nuisance because of mineral buildup on fixtures and poor soap and/or detergent performance.

pH of Water
Water with a pH < 7 is considered acidic and with a pH > 7 is considered basic. The normal range for pH in surface water systems is 6.5 to 8.5 and for ground water systems 6 to 8.5. Alkalinity is a measure of the capacity of the water to resist a change in pH that would tend to make the water more acidic. The measurement of alkalinity and pH is needed to determine the corrosivity of the water.

Source and Cause of Corrosion
Corrosion is a complex series of reactions between the water and metal surfaces and materials in which the water is stored or transported. The corrosion process is an oxidation/reduction reaction that returns refined or processed metal to their more stable ore state.

State Certification Officers for Drinking Water Laboratories
If you want to know what contaminants are in your drinking water, check your annual water quality report from your water supplier or call the water supplier directly. If you want to have additional tests on your water, EPA recommends that you use a laboratory certified by the state. Call the state certification officer or view the list of certified labs.

Total Dissolved Solids
Elevated total dissolved solids can result in your water having a bitter or salty taste; result in incrustations, films, or precipitates on fixtures; corrosion of fixtures, and reduced efficiency of water filters.

Water Quality Diagnostic Tool
A handy resource developed by the Water Quality Association and NAFEM’s Technical Liaison Committee designed to help diagnose water problems, possible causes and potential treatments.

Water Quality Reports
Each year by July 1st you should receive in the mail an annual water quality report (consumer confidence report) from your water supplier that tells where your water comes from and what's in it.