A bit of background....

Two identical brand new dorms with 200 occupants each with separate but identical domestic hot water systems went on line at UC Davis in September of 2005.

In December of 2005, after almost 3 months of operation with no water treatment whatsoever on either system, the tube bundles were removed from the tanks and photographed.

At that point GMX was installed on building # 2. GMX was NOT installed on building # 1.

In June of 2006, after six months of parallel operation with no devices on building # 1, and the GMX Devices installed on building # 2, the tube bundles were removed and photographed again.

Click the image for a large, high resolution picture.

These pictures, taken in December of 2005, show the untreated tube bundles from the boilers in buildings 1 and 2. The dorm has been in use for 3 months, since the start of the 2005-2006 school year. Scale was just beginning to form on the boiler tubes.

Untreated boiler tube in bldg # 1. After 9 months of use without GMX. Scale continued to form and grew thicker and crustier.

Treated boiler tube in bldg # 2. After 9 months of use, 6 months with the GMX devices installed. Scale build-up was less than 6 months earlier. You can now see the copper tubes at the top.

Bundle from bldg # 1 (sorry it is so blurry) after it was scraped with a steel brush. It is hard to see, but scale had severely etched into the copper and would only partially brush off.

Bundle from bldg # 2 after it was scraped with a steel brush. The remaining scale build-up easily brushed off. This boiler tube should be completely clean in a few more months of using GMX.

After 6 months of GMX Magnetic Water Treatment the University of California at Davis (UCD) found the following:

1. There was less scale build-up on the bundle in building # 2 than on the untreated bundle in building # 1.

2. There was less scale build-up on the bundle in building # 2 than was present 6 months earlier. GMX dissolved some of the previous or existing scale build-up.

3. The scale build-up was "light and powdery" on the bundle in building # 2. The scale build-up was "thick and crusty" on the bundle in building # 1.

4. Scale build-up had etched into the tube bundle in building # 1, but did not etch into the GMX treated tube bundle in building # 2.

5. Scale build-up easily scraped off the GMX treated bundle in building #2, but would not scrape off of the untreated bundle in building # 1 to the same degree, even with very aggressive scraping.

The Bottom Line:

UCD Student Housing found the GMX Magnetic Water Treatment to be beneficial, helpful and worthwhile. It reduced scale build-up and changed the chemical nature of the scale so that it is easily removed.

Update: 04-24-2007

Since January 2007 UCD has installed additional devices on the other dorm (building # 1) and they have treated their swimming pools. Many of the employees and other UCD personnel have installed the GMX System on their own homes and are very happy with the results.