Posted on

What is a 7SO Softening Cartridge?

This pretty cool piece of equipment is used for food service and commercial applications. It can give you delicious specialty coffee, wonderfully strong espresso or refreshing, crisp ice tea. This cartridge reduces minerals like calcium and magnesium which cause hard water. It’s like having a mini water softener under your sink. This is ideal for hard water at a flow rate as high as 1/2 gallon per minute. The ion exchange technology is a carbon and resin blend. The cartridge has a psi range of 10-125, as well as, a temperature range of 35 to 100 degrees. The 2,000 grain capacity is ideal for high mineral content and low volume application. What is the proper way to use the 7SO (EV9607-04)? Usually it is a 2 stage setup. The first stage would be a MC2 (EV9612-56) filter. This reduces the chlorine, sediment, taste and odor. The precoat sub-micron technology reduces the dirt and particles as small as 1/2 micron. The 2nd stage is the 7SO, which reduces the hardness. Best operating procedure is to change the cartridge every 6 months just like most other filters. To determine cartridge life, divide total capacity of cartridge by the hardness in grains per gallon (gpg). So for example, 2,000 grains for the 7SO divided by 15 grains of hardness, you would exhaust this cartridge after running approximately 133 gallons of water through it. You can also change when hardness of treated water increases to more than 3 grains per gallon. Do not exceed recommended flow rate which is 0.5 gallons per minute. Don’t forget to flush the cartridge when you install it or change one out. You do this by running water through it for five minutes at full flow. This should be done no matter what filters you are using. The other great thing about this cartridge is that it fits all existing Everpure heads. No electrical connection is required. So if you have hard water in your foodservice location and want great tasting espresso we would recommend the 7SO. For more information on how we can help you on this system or others like it please call us at 800-942-7873.

One thought on “What is a 7SO Softening Cartridge?

  1. thanks for sharing us your knowledge. we really need to have a good water purification system now that millions of people are dying from different diseases they acquired from water

Leave a Reply