If you live in the United States, it is likely you are afflicted by hard water. According to a U.S. geologic survey completed by the American Water Works Association, 85 percent of the United States has hard water (also known as water that high mineral content). While hard water is not harmful to your health, it can have a funny aftertaste and, even worse, cause damage in the boilers of espresso machines by creating scale buildup. Now that you know that there is a good chance that you have hard water in your area, what do you do to protect your precious espresso machine? The easiest and relatively least expensive method is to invest in water softener for commercial espresso machines, such as the Everpure ESO7. While there are a variety of different water softeners and filtrations systems on the market, we like the Everpure because it takes care of a lot of different aspects of water filtration. Not only will this cartridge soften your water, but it will also buffer and filter your water. This helps prevent the water from becoming too acidic and reduces minerals, chlorine, off tastes and orders. In addition, this system has a pretty long lifespan and covers most manufacture warranties. The Everpure ESO7 is a single cartridge system, so you will also need a filter head in order to connect it to your espresso machine. Everpure makes a couple of different heads, so you can get any one that fits this system, but we typically use the QL2 Filter Head since it is simple and economical. However, before you install a water softener, it is important that you know exactly how hard your water is to ensure your purchase the right setup for you café. If you live somewhere that has water that contains five to three grains of scale, you will not want to get the ESO7, as it is too strong and will actually do more harm than good. On the other hand, if you are located in area that has six grams of scale or higher, that amount of scale does need to be brought down and you will want to install something like the Everpure ESO7 to protect your machine. Finally, if you are in an area with really hard water (yes, we’re looking at you Texas, New Mexico, Kansas, Arizona and southern California), you can build a double or triple capacity flirtation system using these Everpure cartridges. Besides working on a variety of setups, these cartridges are easy enough to install and replace that you can do it on your own. This will save you both time and money, since you won’t need to have a tech sent out to you or have to pay any for any technician fees. Ready to start setting up your filtration system? Check out this video where Brandon tells us a little bit more about the Everpure ES07 and demonstrates how it is installed.