Case Study: McDonalds

Case Study: McDonalds



McDonald’s is the world’s largest chain of hamburger fast food restaurants. They serve around 68 million customers daily in 119 countries with more than 35,000 outlets. Their revenue is over 28 billion dollars a year. They are the world’s second largest employer with 1.9 million employees.


With a hardness level of 27 grains, a McDonald’s in State College, PA was experiencing several problems associated with hard water – scale buildup in faucets, toilets, sinks and kitchen equipment in addition the scale was clogging up the dishwasher.


The original ScaleBlaster model SB-100 was installed on the waterline entering the building.


September 26, 1997


Within days of installation, employees noticed a difference in the water. The limescale buildup in the faucets had disappeared, the toilets were easier to clean and the overhead spryer on the dishwasher was no longer clogging up. The owner reported savings in soap usage, cleaning supplies and labor – especially the savings realized in plumbing and fixture maintenance repair.