Private Brewery GATZWEILER

September 19^th 1991

used devices:

• 2 devices GAMMA 2, size ¾" (installed in production and household)
• 1 device GAMMA 3, size 1"    (installed in production site)

We have been testing above mentioned devices in applications of production and household since end of June 1991.

The two devices being used in the production site, have been installed in the drinking water system with a medium hardness of 20° German Hardness. The test showed, that the calcium structure was transformed into a fine white slime, which could be flushed off, so that there was no calcium deposit in the system.

Therefore we come to the conclusion that these devices are qualified for our demand of use.

The device which was installed in household application performed in a total water hardness of 24° German Hardness in the way that there was no scaling on taps, washing mashines and dish washers. On armatures and  washing basin we could notice a fine slime, which could be wiped off easily.

In this application we can state as well that the devices are fully qualified.

Signed by the Brew Master of Gatzweilers Private Brewery